Debt Disclosure [Abstract] Debt Debt Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Unrecognized compensation cost related to nonvested share-based compensation arrangements Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted-average period over which unrecognized compensation cost is expected to be recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition INTANGIBLE AND OTHER ASSETS Schedule of intangible and other assets-net Schedule of Intangible and Other Assets [Table Text Block] Schedule of Intangible and Other Assets. Schedule of estimated aggregate future amortization expense by fiscal year for intangible assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Revenue from Contract with Customer [Abstract] Revenue Revenue from Contract with Customer [Text Block] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Account receivable allowances SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Sales returns Sales Returns and Allowances [Member] Bad debts SEC Schedule, 12-09, Allowance, Credit Loss [Member] Markdowns SEC Schedule, 12-09, Reserve, Inventory [Member] Deferred tax asset valuation allowance SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] Valuation and qualifying accounts SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Balance at Beginning of Period SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Charged (Credited) to Operations SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Charged to Other Accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account Actual Returns or Writeoffs SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Balance at End of Period Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not designated as hedging instruments Not Designated as Hedging Instrument [Member] Designated as cash flow hedges Designated as Hedging Instrument [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedges Cash Flow Hedging [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Forward contracts Foreign Exchange Forward [Member] Interest rate swaps Interest Rate Swap [Member] Derivative [Line Items] Derivative [Line Items] Fair value of designated forward contracts Derivative, Fair Value, Net Hedged amount Derivative, Amount of Hedged Item Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Concentration Risk [Table] Concentration Risk [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Non-Swiss watch assembly Non-Swiss Watch Assembly [Member] Non-Swiss Watch Assembly [Member] Licensed products Licensed Products [Member] Licensed Products [Member] MICHAEL KORS Michael Kors Licensed Product [Member] Represents information pertaining to the MICHAEL KORS product. Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Production Production [Member] Aggregate production during the period from the specified number of factories in the normal course of business. Sales of licensed products Sales Revenue, Product Line [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Production concentration Production Concentration Risk [Member] Reflects the percentage of assembly and production from specified products are to a specified benchmark. Licensed products Product Concentration Risk [Member] Concentration of Risk Concentration Risk [Line Items] Concentration risk percentage Concentration Risk, Percentage Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Stockholders' equity attributable to Fossil Group, Inc. Parent [Member] Common stock Common Stock [Member] Additional paid-in capital Additional Paid-in Capital [Member] Treasury stock Treasury Stock [Member] Retained earnings Retained Earnings [Member] Accumulated other comprehensive income (loss) AOCI Attributable to Parent [Member] Noncontrolling interest Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Shareholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance at beginning of period (in shares) Common Stock, Shares, Issued Balance at beginning of period Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Common stock issued upon exercise of stock options, stock appreciation rights and restricted stock units (in shares) Stock Issued During Period, Shares, Share-based Compensation, Gross Common stock issued upon exercise of stock options, stock appreciation rights and restricted stock units Stock Issued During Period, Value, Share-based Compensation, Gross Tax benefit (expense) derived from stock-based compensation Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Acquisition of common stock Stock Repurchased During Period, Value Retirement of common stock (in shares) Treasury Stock, Shares, Retired Retirement of common stock Treasury Stock, Retired, Cost Method, Amount Stock-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Distribution of noncontrolling interest earnings and other Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Adoption of Accounting Standards Update (ASU) 2014-09 Cumulative Effect of New Accounting Principle in Period of Adoption Adoption of ASU 2018-02 Tax Cuts And Jobs Act Of 2017 Reclassification From Aoci To Retained Earnings Tax Effect Tax Cuts And Jobs Act Of 2017 Reclassification From Aoci To Retained Earnings Tax Effect Purchase of noncontrolling interest shares Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Balance at end of period (in shares) Balance at end of period Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Land Land [Member] Buildings Building [Member] Machinery and equipment Machinery and Equipment [Member] Furniture and fixtures Furniture and Fixtures [Member] Computer equipment and software Computer Equipment [Member] Leasehold improvements Leasehold Improvements [Member] Construction in progress Construction in Progress [Member] Property, plant and equipment Property, Plant and Equipment [Line Items] Property, plant and equipment - gross Property, Plant and Equipment, Gross Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment-net Property, Plant and Equipment, Net Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Watches Watches [Member] Information related to the watches product line. Leathers Leathers [Member] Information related to the leathers product line. Jewelry Jewelry [Member] Information related to the jewelry product line. Other Products Other [Member] Information related to other product lines. Net sales for each class of similar products Segment Reporting Information [Line Items] Percentage of Total Percentage of Product Revenue to Total Sales Revenue Percentage Of Product Revenue To Total Sales Revenue. Net sales Revenue from Contract with Customer, Excluding Assessed Tax Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Beginning asset retirement obligation Asset Retirement Obligation Liabilities incurred during the period Asset Retirement Obligation, Liabilities Incurred Liabilities settled during the period Asset Retirement Obligation, Liabilities Settled Accretion expense Asset Retirement Obligation, Accretion Expense Currency translation Asset Retirement Obligation, Foreign Currency Translation Gain (Loss) Ending asset retirement obligations Other Income and Expenses [Abstract] Schedule of other income (expense)—net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Minimum Royalty Commitments Other Commitment, Fiscal Year Maturity [Abstract] 2019 Other Commitment, Due in Next Twelve Months 2020 Other Commitment, Due in Second Year 2021 Other Commitment, Due in Third Year Thereafter Other Commitment, Due After Year Three Other Commitment, Due After Year Three Total Other Commitment Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Intellectual Property Intellectual Property [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Credit Agreement Credit Agreement [Member] Represents the overall credit facility which provides for revolving credit loans, a swingline loan and letters of credit. Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Debt payments Repayments of Notes Payable Proceeds from sale of intangible asset Proceeds from Sale of Intangible Assets Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Restructuring charges Restructuring Charges [Member] Selling, general and administrative Selling, General and Administrative Expenses [Member] Retail stores Retail Site [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Useful life Property, Plant and Equipment, Useful Life Impairment losses Tangible Asset Impairment Charges Loss on disposal of assets Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Product Warranties Disclosures [Abstract] Schedule of warranty liability activity Schedule of Product Warranty Liability [Table Text Block] Property, Plant and Equipment Property, Plant and Equipment Disclosure [Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Other international Notes Payable to Banks [Member] U.S. revolving line of credit Revolving Credit Facility [Member] U.S. term loan Loans Payable [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Total debt Long-term Debt US term loan Debt, Long-term and Short-term, Combined Amount Short-term Debt Short-term Debt Less current portion Long-term Debt, Current Maturities Long-term debt Long-term Debt, Excluding Current Maturities Debt issuance costs Debt Issuance Costs, Net Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Performance Shares Performance Shares [Member] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock Compensation Plan Stock Compensation Plan [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Numerator: Net Income (Loss) Attributable to Parent [Abstract] Net income (loss) attributable to Fossil Group, Inc. Net Income (Loss) Available to Common Stockholders, Basic Denominator: Weighted Average Number of Shares Outstanding, Basic [Abstract] Basic weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Basic EPS (in dollars per share) Earnings Per Share, Basic Diluted EPS computation: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Stock options, stock appreciation rights and restricted stock units (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Diluted weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted EPS (in dollars per share) Earnings Per Share, Diluted Shares issuable under stock-based awards not included in the diluted EPS calculation (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Prepaid Expense and Other Assets, Current [Abstract] Prepaid Expenses and Other Current Assets Prepaid Expenses and Other Current Assets [Text Block] The entire disclosure representing the prepaid expenses and other current assets. Minimum years of service to be eligible for employer 401(k) matching Defined Contribution Plan Requisite Service Period for Entity's Discretionary Contribution Minimum amount of service for employees to be eligible for employer 401(k) matching. Minimum hours worked to be eligible for employer 401(k) matching Defined Contribution Plan Requisite Working Hours for Entitys Discretionary Contribution Minimum hours worked for employees to be eligible for employer 401(k) matching. Percentage of employee contributions in which Company will provide a matching contribution Defined Contribution Plan Employer Matching Percent of Employee Contributions Percentage of employee contributions for which the Company will provide a matching contribution of up to 6 percent of employee compensation. Percentage of eligible compensation, first level, matched by employer after amendment (up to) Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Employer's matching contributions under the plan Defined Contribution Plan, Cost Maximum additional contribution by employer (as a percent) Defined Contribution Plan Maximum Additional Contribution Per Employee Percentage Represents the maximum percentage of employee gross pay, by the terms of the plan that the employer may additionally contribute to a defined contribution plan. Additional employer matching contributions Deferred Contribution Plan, Additional Employer Matching Contributions Deferred Contribution Plan, Additional Employer Matching Contributions Maximum percentage of salary that may be deferred by participating employees Deferred Compensation Arrangements Maximum Percentage of Salary that May be Deferred Represents the maximum percentage of salary that may be deferred by participating employees for the defined contribution plan. Maximum percentage of annual bonus that may be deferred by participating employees Deferred Compensation Arrangements Maximum Percentage of Annual Bonus that May be Deferred Represents the maximum percentage of annual bonus that may be deferred by the participating employees for the defined contribution plan. Deferred compensation plan, contributions by employer Deferred Compensation Plan, Contributions By Employer Deferred Compensation Plan, Contributions By Employer Asset related to invested balances recorded in intangibles and other assets-net Deferred Compensation Plan Assets Liability related to participants' invested balances recorded in accrued expenses other Deferred Compensation Arrangement with Individual, Recorded Liability Reconciliation of numerators and denominators used in the computations of both basic and diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of cash and cash equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Subsequent Events Subsequent Events [Text Block] Less than 1 Year Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months Year 2 Long-term Debt, Maturities, Repayments of Principal in Year Two Principal amounts repayable Long-term Debt, Gross Debt issuance costs Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Supplemental Cash Flow Elements [Abstract] Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Shares Share Based Compensation Arrangement by Share Based Payment Award Options and Stock Appreciation Rights Additional Disclosures [Abstract] Outstanding at beginning of period (in shares) Share Based Compensation Arrangement by Share Based Payment Award Options and Stock Appreciation Rights Outstanding Number The number of shares reserved for issuance under stock option and stock appreciation rights agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Granted (in shares) Share Based Compensation Arrangement by Share Based Payment Award Options and Stock Appreciation Rights Grants in Period Gross Gross number of share options and stock appreciation rights granted during the period. Exercised (in shares) Stock Issued During Period Shares Stock Options and Stock Appreciation Rights Exercised Number of share options and stock appreciation rights exercised during the current period. Forfeited or expired (in shares) Share Based Compensation Arrangement by Share Based Payment Award Options and Stock Appreciation Rights Forfeitures and Expirations in Period For presentations that combine terminations, the number of shares under options and stock appreciation rights that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option and stock appreciation right plan or that expired. Outstanding at end of period (in shares) Exercisable (in shares) Share Based Compensation Arrangement by Share Based Payment Award Options and Stock Appreciation Rights Exercisable Number The number of shares into which fully or partially vested stock options and stock appreciation rights outstanding as of the balance sheet date can be currently converted under the option and stock appreciation rights plans. Weighted-Average Exercise Price Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Outstanding Weighted Average Exercise Price [Roll Forward] Outstanding at beginning of period (in dollars per share) Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Outstanding Weighted Average Exercise Price Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option and stock appreciation rights plans. Granted (in dollars per share) Share Based Compensation Arrangements By Share Based Payment Award, Options And Stock Appreciation Rights, Grants In Period, Weighted Average Exercise Price Share Based Compensation Arrangements By Share Based Payment Award, Options And Stock Appreciation Rights, Grants In Period, Weighted Average Exercise Price Exercised (in dollars per share) Share Based Compensation Arrangements by Share Based Payment Award, Options and Stock Appreciation Rights Exercises in Period Weighted Average Exercise Price Weighted average price at which option holders acquired shares when converting their stock options and stock appreciation rights into shares. Forfeited or expired (in dollars per share) Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Forfeitures and Expirations in Period Weighted Average Exercise Price Weighted average price of options and stock appreciation rights that were either forfeited or expired. Outstanding at end of period (in dollars per share) Exercisable (in dollars per share) Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Exercisable Weighted Average Exercise Price The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options and stock appreciation rights outstanding and currently exercisable under the stock option and stock appreciation right plan. Weighted-Average Remaining Contractual Term (Years) Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Additional General Disclosures [Abstract] Outstanding Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Outstanding Weighted Average Remaining Contractual Term Weighted average remaining contractual term for option awards and stock appreciation rights outstanding. Exercisable Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Exercisable Weighted Average Remaining Contractual Term Weighted average remaining contractual term for vested portions of options and stock appreciation rights outstanding and currently exercisable. Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Outstanding Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Outstanding Intrinsic Value Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options and stock appreciation rights outstanding. Exercised Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Exercises in Period Total Intrinsic Value The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options and stock appreciation rights which were exercised (or share units converted) into shares during the reporting period under the plan. Exercisable Share Based Compensation Arrangement by Share Based Payment Award, Options and Stock Appreciation Rights Exercisable Intrinsic Value Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options and stock appreciation rights outstanding and currently exercisable. Other Commitments [Table] Other Commitments [Table] Other Commitments [Line Items] Other Commitments [Line Items] Royalty expense Royalty Expense Percentage of royalties Percentage of Royalty Expense Represents the minimum percentage of royalties based on defined net sales. Rent expense Operating Leases, Rent Expense, Net Contingent rent expense Operating Leases, Rent Expense, Contingent Rentals Purchase obligations Unrecorded Unconditional Purchase Obligation Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Table Text Block] Income Tax Disclosure [Abstract] Schedule of significant components of the consolidated deferred tax assets and liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of the amounts and the fiscal year of expiration of loss carryforwards Summary of Operating Loss Carryforwards [Table Text Block] Schedule of income before income taxes for the Company's U.S. and non-U.S. based operations Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Components of provision for income taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Reconciliation of the U.S. federal statutory income tax rate to the effective tax rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Reconciliation of the total amounts of unrecognized tax benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Schedule of Debt Instruments [Table] Schedule of Debt Instruments [Table] A table or schedule providing information pertaining to short-term and long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. Debt Instrument, Period [Axis] Debt Instrument, Period [Axis] Debt Instrument, Period [Axis] Debt Instrument, Period [Domain] Debt Instrument, Period [Domain] [Domain] for Debt Instrument, Period [Axis] Post Closing, First Anniversary Post Closing, First Anniversary [Member] Post Closing, First Anniversary [Member] Post Closing, Second Anniversary Post Closing, Second Anniversary [Member] Post Closing, Second Anniversary [Member] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Lower Of Cost Or Market Value Lower Of Cost Or Market Value [Member] Lower Of Cost Or Market Value [Member] Net Liquidation Value Net Liquidation Value [Member] Net Liquidation Value [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] United States Finished Goods Inventory United States Finished Goods Inventory [Member] United States Finished Goods Inventory [Member] Foreign Finished Goods Inventory Foreign Finished Goods Inventory [Member] Foreign Finished Goods Inventory [Member] Notes Payable to Banks Second A&R Credit Agreement Second A&R Credit Agreement [Member] Second A&R Credit Agreement [Member] Capital lease obligations Capital Lease Obligations [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Letter of Credit Letter of Credit [Member] Term Loan Facility Term Loan Facility [Member] Term Loan Facility [Member] Debt Covenant Period [Axis] Debt Covenant Period [Axis] Debt Covenant Period [Axis] Debt Covenant Period [Domain] Debt Covenant Period [Domain] [Domain] for Debt Covenant Period [Axis] Debt covenant period ending December 29, 2018 Debt Covenant Period Four [Member] Debt Covenant Period Four [Member] Debt covenant period December 30, 2018 through September 29, 2019 Debt Covenant Period Five [Member] Debt Covenant Period Five [Member] Debt covenant period, thereafter Debt Covenant Period Six And Thereafter [Member] Debt Covenant Period Six And Thereafter [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Base Rate Base Rate [Member] LIBOR London Interbank Offered Rate (LIBOR) [Member] Debt Instrument Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Percentage of eligible accounts receivable Line Of Credit Facility, Components Of Borrowing Base, Percentage Of Assets, United States Receivables Line Of Credit Facility, Components Of Borrowing Base, Percentage Of Assets, United States Receivables Percentage of net credit card receivables Line Of Credit Facility, Components Of Borrowing Base, Percentage Of Assets, Credit Card Receivables Line Of Credit Facility, Components Of Borrowing Base, Percentage Of Assets, Credit Card Receivables Remaining borrowing capacity as a percentage of accounts receivable Line Of Credit Facility, Components Of Borrowing Base, Percentage Of Assets Line Of Credit Facility, Components Of Borrowing Base, Percentage Of Assets Percentage of eligible accounts receivable of non-U.S. borrowers Line Of Credit Facility, Components Of Borrowing Base, Percentage Of Assets, Foreign Borrowers Line Of Credit Facility, Components Of Borrowing Base, Percentage Of Assets, Foreign Borrowers Line of credit facility, borrowing base, excluding aggregate reserves, amount Line Of Credit Facility, Borrowing Base, Excluding Aggregate Reserves, Amount Line Of Credit Facility, Borrowing Base, Excluding Aggregate Reserves, Amount Aggregate principal amount Penalties or other terminations fees Debt Instrument, Penalties and Early Termination Fees Debt Instrument, Penalties and Early Termination Fees Loss recorded in other income (expense) Gain (Loss) on Extinguishment of Debt Basis spread on base rate (as a percent) Debt Instrument, Basis Spread on Variable Rate Debt instrument, basis spread on variable rate, increase Debt Instrument, Basis Spread on Variable Rate, Increase Debt Instrument, Basis Spread on Variable Rate, Increase Outstanding principal balance, year one Outstanding principal balance, year two Long-term Debt, Maturities, Repayments of Principal in Year Three Line of credit facility, annual authorized prepayment amount Line Of Credit Facility, Annual Authorized Prepayment Amount Line Of Credit Facility, Annual Authorized Prepayment Amount Increments in excess of minimum principal amount Debt Instrument Increments in Excess of Minimum Principal Amount Represents the incremental principal payments in excess of the minimum principal amount. Line of credit, voluntary permanent reduction in revolving credit capacity Line Of Credit, Voluntary Permanent Reduction In Revolving Credit Capacity Line Of Credit, Voluntary Permanent Reduction In Revolving Credit Capacity Line of credit, incremental amount in excess of voluntary permanent reduction in revolving credit capacity Line Of Credit, Incremental Amount In Excess Of Voluntary Permanent Reduction In Revolving Credit Capacity Line Of Credit, Incremental Amount In Excess Of Voluntary Permanent Reduction In Revolving Credit Capacity Line of credit facility, commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Debt instrument covenant, fixed charge coverage ratio Debt Instrument Covenant, Fixed Charge Coverage Ratio Debt Instrument Covenant, Fixed Charge Coverage Ratio Debt instrument covenant, cash and cash equivalents including amount available for borrowing Debt Instrument Covenant, Cash And Cash Equivalents Including Amount Available For Borrowing Debt Instrument Covenant, Cash And Cash Equivalents Including Amount Available For Borrowing Consolidated leverage ratio required (less than) Debt Instrument Covenant Consolidated Leverage Ratio Represents the consolidated leverage ratio required per the debt agreement. Debt instrument covenant, minimum trailing twelve month EBITDA Debt Instrument Covenant, Minimum Trailing Twelve Month EBITDA Debt Instrument Covenant, Minimum Trailing Twelve Month EBITDA Debt instrument covenant, minimum liquidity requirement, cash and cash equivalents including amount available for borrowing Debt Instrument Covenant, Minimum Liquidity Requirement, Cash And Cash Equivalents Including Amount Available For Borrowing Debt Instrument Covenant, Minimum Liquidity Requirement, Cash And Cash Equivalents Including Amount Available For Borrowing Debt instrument covenant, maximum capital expenditures per year Debt Instrument Covenant, Maximum Capital Expenditures Per Year Debt Instrument Covenant, Maximum Capital Expenditures Per Year Net borrowings under Term Loan Proceeds from (Repayments of) Debt Net payments Proceeds from (Repayments of) Lines of Credit Remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Interest expense incurred Interest Expense, Long-term Debt Debt issuance costs amortization Amortization of Debt Issuance Costs Debt instrument, face amount Debt Instrument, Face Amount Debt instrument, interest rate, effective percentage Debt Instrument, Interest Rate, Effective Percentage Current capital lease obligations Capital Lease Obligations, Current Long-term capital lease obligations Capital Lease Obligations, Noncurrent Fair Value Disclosures [Abstract] Schedule of the fair value hierarchy of assets and liabilities measured at fair value on a recurring basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] SCHEDULE II VALUATIONS AND QUALIFYING ACCOUNTS SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Online Dashboard, Mobile Applications, and Upgrade Rights Online Dashboard, Mobile Applications, And Upgrade Rights [Member] Online Dashboard, Mobile Applications, And Upgrade Rights [Member] Wearable Technology Wearable Technology [Member] Wearable Technology [Member] Gift Cards Gift Cards [Member] Gift Cards [Member] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Estimated usage period Contract With Customer, Liability, Amortization Period Contract With Customer, Liability, Amortization Period Material contract assets Contract with Customer, Asset, Net Deferred contract costs Capitalized Contract Cost, Net Contract liabilities Contract with Customer, Liability Foreign currency transaction gains (losses) Foreign Currency Transaction Gain (Loss), before Tax Current provision: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] U.S. federal Current Federal Tax Expense (Benefit) Non-U.S Current Foreign Tax Expense (Benefit) State and local Current State and Local Tax Expense (Benefit) Total current Current Income Tax Expense (Benefit) Deferred provision (benefit): Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] U.S. federal Deferred Federal Income Tax Expense (Benefit) Non-U.S Deferred Foreign Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) Total deferred Deferred Income Tax Expense (Benefit) Provision for income taxes Income Tax Expense (Benefit) Fair Value Measurements Fair Value Disclosures [Text Block] Stockholders' Equity Note [Abstract] Noncontrolling Interest [Table] Noncontrolling Interest [Table] Ownership [Axis] Ownership [Axis] Ownership [Domain] Ownership [Domain] Fossil Accessories South Africa Pty. Ltd. Fossil Accessories South Africa Pty. Ltd. [Member] Fossil Accessories South Africa Pty. Ltd. [Member] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Purchase of noncontrolling interest shares Payments for noncontrolling interest Payments to Noncontrolling Interests Noncontrolling interest, ownership percentage by parent Noncontrolling Interest, Ownership Percentage by Parent Variable consideration in accrued expenses-other Noncontrolling Interest, Purchase of Interests, Current Amount Noncontrolling Interest, Purchase of Interests, Current Amount Variable consideration in other long-term liabilities Noncontrolling Interest, Purchase of Interests, Non-Current Amount Noncontrolling Interest, Purchase of Interests, Non-Current Amount Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Stock options and stock appreciation rights Stock Options And Stock Appreciation Rights S A R S [Member] Represents information pertaining to stock options and stock appreciation rights. Stock options refer to contract that gives the holder the right, but not the obligation, either to purchase or to sell a certain number of shares of stock at a predetermined price for a specified period of time. Stock appreciation rights refer to the right to receive cash compensation equal to the appreciation of a predetermined number of the entity's shares during a predetermined time period. Stock-based compensation plans disclosures Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Estimated fair value per stock option/stock appreciation right granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Amortization expense for intangible assets Amortization of Intangible Assets Estimated aggregate future amortization expense by fiscal year Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract] 2019 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Restructuring and Related Activities [Abstract] Restructuring Restructuring and Related Activities Disclosure [Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Reported Value Measurement Reported Value Measurement [Member] Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Specific company-owned stores Specific Company Owned Stores Net [Member] The specific company-owned stores-net class of assets measured and disclosed at fair value. Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Americas Americas Segment [Member] Segment on the continents of North and South America. Europe Europe Segment [Member] Segment in the region of Europe. Asia Asia Segment [Member] Segment in the region of Asia. Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Trade Names, SKAGEN Trade Names SKAGEN [Member] Trade Names SKAGEN [Member] Trade Names, MISFIT Trade Names MISFIT [Member] Trade Names MISFIT [Member] Trade Name, MICHELE Trade Name MICHELE [Member] Trade Name MICHELE [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair value of debt Long-term Debt, Fair Value Property, plant and equipment-net Key money amount not recoverable Key Money Amount Deemed Not Recoverable Key money amount deemed not recoverable and included in impairment charge. Impairment charge Asset Impairment Charges Indefinite-lived intangible assets (excluding goodwill) Indefinite-lived Intangible Assets (Excluding Goodwill) Goodwill, impairment loss Goodwill, Impairment Loss Indefinite-lived intangible assets (excluding goodwill), fair value disclosure Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure Impairment charges Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) Contingent consideration remeasurement Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Intangible and Other Assets [Table] Intangible and Other Assets [Table] Schedule of intangibles and other assets. Trademarks Trademarks [Member] Customer lists Customer Lists [Member] Patents Patents [Member] Noncompete agreement Noncompete Agreements [Member] Developed technology Developed Technology Rights [Member] Other Other Intangible Assets [Member] Other Assets [Axis] Other Assets [Axis] Information by type or class of other assets. Other Assets [Domain] Other Assets [Domain] The major type or class of other assets. Key money deposits Key Money Deposits [Member] Represents key money deposits. Other deposits Other Deposits [Member] Represents other deposits. Deferred compensation plan assets Deferred Compensation Plan Assets [Member] Represents deferred compensation plan assets. Deferred tax asset-net Deferred Tax Asset [Member] Represents deferred tax assets. Restricted cash Restricted Cash [Member] Represents restricted cash. Shop-in-shop Shop In Shop [Member] Represents information pertaining to shop-in-shop. Tax receivable Long Term Tax Receivable [Member] Long Term Tax Receivable [Member] Forward contracts Forward Contracts [Member] Investments Investments [Member] Other Assets Other [Member] Represents other assets that are not specifically identified. Intangible and other assets Intangible and Other Assets [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Intangibles-subject to amortization: Finite-Lived Intangible Assets, Net [Abstract] Useful Lives Finite-Lived Intangible Asset, Useful Life Gross Amount Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangibles-not subject to amortization: Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract] Gross Amount Indefinite-Lived Trade Names Other assets: Prepaid Expense and Other Assets [Abstract] Gross Amount Other Assets Accumulated Amortization Accumulated Amortization Related to Other Assets Accumulated Amortization Related To Other Assets. Gross Amount Total Intangibles and Other Assets Total Intangibles And Other Assets. Accumulated Amortization Intangible and Other, Assets Accumulated Amortization The cumulative amount of amortization (related to Intangible And Other Assets) that has been recognized in the income statement. Total intangible and other assets-net Intangible Assets and Other Assets, Noncurrent Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Also includes the aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet due to materiality considerations. Noncurrent assets are expected to be realized or consumed after one year. Employee Benefit Plans Defined Contribution Plans and Share-based Payments Disclosure [Text Block] The entire disclosure for defined contribution plans and compensation-related costs for equity-based compensation. Schedule of the components of property, plant and equipment-net Schedule of Property Plant and Equipment Components [Table Text Block] Tabular disclosure of the components of property, plant and equipment. Derivatives and Risk Management Derivative Instruments and Hedging Activities Disclosure [Text Block] Schedule of future minimum royalty commitments under license agreements Schedule of Future Minimum Royalty Commitments [Table Text Block] Tabular disclosure of future minimum royalty commitments under license agreements. Schedule of future minimum rental commitments under non-cancelable leases Schedule of Future Minimum Lease Payments for Operating and Capital Leases [Table Text Block] Tabular disclosure of future minimum payments, as of the date of the latest balance sheet presented, in aggregate and for each of the five succeeding fiscal years, for capital and operating leases. Summary of changes in the Company's asset retirement obligations Schedule of Asset Retirement Obligations [Table Text Block] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash included in prepaid expenses and other current assets Restricted Cash, Current Restricted cash included in intangible and other assets-net Restricted Cash, Noncurrent Cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Tax at statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Non-deductible expenses and other permanent differences Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent State, net of federal tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Foreign rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Withholding taxes Effective Income Tax Rate Reconciliation, Withholding Tax Effective Income Tax Rate Reconciliation, Withholding Tax GILTI Tax-net of foreign tax credits Effective Income Tax Rate Reconciliation, GILTI Tax, Foreign Effective Income Tax Rate Reconciliation, GILTI Tax, Foreign U.S. tax on foreign income-net of foreign tax credits Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Percent Income tax contingencies Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Valuation allowances Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Repatriation tax - net impact Effective Income Tax Rate Reconciliation, Tax Cuts And Jobs Act Of 2017, Transition Tax On Accumulated Foreign Earnings, Percent Effective Income Tax Rate Reconciliation, Tax Cuts And Jobs Act Of 2017, Transition Tax On Accumulated Foreign Earnings, Percent Deficiencies on employee stock awards Effective Income Tax Rate Reconciliation, Non-Deductible, Employee Stock Awards, Percent Effective Income Tax Rate Reconciliation, Non-Deductible, Employee Stock Awards, Percent Non-deductible goodwill impairment Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent Tax Reform rate reduction impact on deferred tax assets Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Return to provision true-up Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Provision for income taxes Effective Income Tax Rate Reconciliation, Percent Schedule of outstanding forward contracts Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Schedule of effective portion of gains and losses on derivative instruments recognized in other comprehensive income (loss), net of taxes Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Schedule of effective portion of gains and losses on derivative instruments designated and qualifying as cash flow hedges recorded in other comprehensive income (loss), net of taxes during the term of the hedging relationship and reclassified into earnings and gains and losses on derivatives not designated as hedging instruments recorded Derivative Instruments, Gain (Loss) [Table Text Block] Schedule of fair value amounts for derivative instruments as separate asset and liability values on a gross basis and their location on condensed consolidated balance sheets Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Research and development costs Research and Development Expense Estimated sales return provision Contract with Customer, Asset, Credit Loss Expense U.S Income (Loss) from Continuing Operations before Income Taxes, Domestic Non-U.S Income (Loss) from Continuing Operations before Income Taxes, Foreign Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Trade name Trade Names [Member] Finite lived intangible assets Acquired Finite-Lived Intangible Assets [Line Items] Useful lives Number of reporting units that evaluate goodwill for impairment Number of Reporting Units Goodwill, impairment loss Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] Without Adoption of ASU 2014-09 Calculated under Revenue Guidance in Effect before Topic 606 [Member] Impact of Adoption of ASU 2014-09 Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Assets Assets [Abstract] Accounts receivable Accounts Receivable, Net, Current Inventories Inventory, Net Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Liabilities: Liabilities [Abstract] Customer liabilities Contract with Customer, Liability, Current Cost of sales Cost of Goods and Services Sold Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Significant components of the consolidated deferred tax assets and liabilities Components of Deferred Tax Assets and Liabilities [Abstract] Deferred income tax assets (liabilities): Deferred Tax Assets, Net of Valuation Allowance, Classification [Abstract] Bad debt allowance Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Returns allowance Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Returns and Allowances Inventory Deferred Tax Assets, Inventory Warranty liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Warranty Reserves Markdown allowance Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Markdown Allowance Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Markdown Allowance Compensation Deferred Tax Assets, Compensation Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation expected Accrued liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Deferred rent Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent Deferred income Deferred Tax Assets, Deferred Income Unrealized exchange gains (losses) Deferred Tax Assets, Unrealized Currency Losses State income tax and interest on tax contingencies Deferred Tax Assets, State Income Tax and Interest on Tax Contingencies Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from state taxes and interest on tax contingencies expected to be realized or consumed after one year (or the normal operating cycle, if longer). Fixed assets Deferred Tax Liabilities, Property, Plant and Equipment Trade names and customer lists Deferred Tax Asset, Intangible Assets Deferred Tax Asset, Intangible Assets Trade names and customer lists Deferred Tax Liabilities, Other Finite-Lived Assets Goodwill Deferred Tax Asset, Goodwill Deferred Tax Asset, Goodwill Other intangibles Deferred Tax Liabilities, Intangible Assets Undistributed earnings of certain foreign subsidiaries Deferred Tax Liabilities, Undistributed Foreign Earnings Foreign accruals Deferred Tax Assets, Tax Credit Carryforwards, Foreign Loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Tax credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards Valuation allowance Deferred Tax Assets, Valuation Allowance Capitalized R&D Deferred Tax Assets, in Process Research and Development Interest disallowance Deferred Tax Assets, Tax Deferred Expense, Interest Disallowed Deferred Tax Assets, Tax Deferred Expense, Interest Disallowed Other Deferred Tax Assets, Other Net deferred income tax assets Deferred Tax Assets, Net Total deferred income tax assets Deferred Tax Assets, Gross Total deferred income tax liabilities Deferred Tax Liabilities, Gross Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Amount Reclassified from AOCI Reclassification out of Accumulated Other Comprehensive Income [Member] Unrealized gain (loss) on forward contracts Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Currency [Axis] Currency [Axis] All Currencies [Domain] All Currencies [Domain] Euro Euro Member Countries, Euro Canadian dollar Canada, Dollars British pound United Kingdom, Pounds Japanese yen Japan, Yen Mexican peso Mexico, Pesos Australian dollar Australia, Dollars U.S. dollar United States of America, Dollars Maximum period of future intercompany purchases Maximum Length of Time, Foreign Currency Cash Flow Hedge Percentage of forecasted purchases to manage fluctuations in global currencies (up to) Cash Flow Hedge Coverage Percentage Maximum percentage of cash flow hedge coverage as defined by policy. Hedges resulted ineffectiveness Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Gains or losses reclassified into earnings Notional amount Derivative, Notional Amount Restricted Stock and Restricted Stock Units Restricted Stock And Restricted Stock Units R S U [Member] Shares and stock units that an entity has not yet issued because the agreed-upon consideration, such as employee services, has not yet been received. Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Nonvested at beginning of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Nonvested at end of period (in shares) Weighted-Average Grant Date Fair Value Per Share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Nonvested at beginning of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Nonvested at end of period (in dollars per share) Intangible and Other Assets Intangible and Other Assets Disclosure [Text Block] The entire disclosure for intangibles and other assets. Major Customer, Segment and Geographic Information Segment Reporting Disclosure [Text Block] Advertising costs Advertising Expense Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Schedule of changes in components of accumulated other comprehensive income (loss), net of taxes Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Summary information by operating segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of revenue for each class of similar products Revenue from External Customers by Products and Services [Table Text Block] Schedule of net sales and long-lived assets by geographic area Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Taxes Income Tax Disclosure [Text Block] Schedule of components of debt excluding capital lease obligations Schedule of Debt [Table Text Block] Schedule of maturity of debt excluding capital lease obligations Schedule of Maturities of Long-term Debt [Table Text Block] Other Income (Expense)—Net Other Income and Other Expense Disclosure [Text Block] Supplemental Disclosure for Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Income Statement [Abstract] Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Selling, general and administrative expenses Selling, General and Administrative Expense Goodwill and trade name impairments Goodwill and Intangible Asset Impairment Restructuring charges Restructuring Charges Total operating expenses Operating Expenses Operating income (loss) Operating Income (Loss) Interest expense Interest Expense Other income (expense) - net Other Nonoperating Income (Expense) Provision for income taxes Net income (loss) Less: Net income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) attributable to Fossil Group, Inc. Other comprehensive income (loss), net of taxes: Other Comprehensive Income (Loss), Net of Tax [Abstract] Currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Cash flow hedges - net change Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Pension plan activity Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Total other comprehensive income (loss) Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Less: Comprehensive income attributable to noncontrolling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to Fossil Group, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Earnings (loss) per share: Earnings Per Share [Abstract] Basic (in dollars per share) Diluted (in dollars per share) Weighted average common shares outstanding: Basic (in shares) Diluted (in shares) Fair Value Measurement, Policy [Policy Text Block] Fair Value Measurement, Policy [Policy Text Block] Consolidated Financial Statements Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Concentration of Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Cash Equivalents Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Accounts Receivable Receivables, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Investments Investment, Policy [Policy Text Block] Property, Plant and Equipment, Other, and Property Held For Sale Property, Plant and Equipment, Policy [Policy Text Block] Goodwill and Other Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Accrued Expenses Other Accrued Expenses and Other Policy [Policy Text Block] Disclosure of accounting policy for other accrued expenses. Other Long-Term Liabilities Other Long Term Liabilities [Policy Text Block] Disclosure of accounting policy for other long-term liabilities. Cumulative Translation Adjustment and Foreign Transaction Gains and Losses Foreign Currency Transactions and Translations Policy [Policy Text Block] Litigation Liabilities Litigation Reserves Policy [Policy Text Block] Disclosure of accounting policy for litigation reserves. Revenues Revenue from Contract with Customer [Policy Text Block] Cost of Sales Cost Of Goods And Services Sold, Policy [Policy Text Block] Cost Of Goods And Services Sold, Policy [Policy Text Block] Operating Expenses Selling, General and Administrative Expenses, Policy [Policy Text Block] Advertising Costs Advertising Costs, Policy [Policy Text Block] Warranty Costs Standard Product Warranty, Policy [Policy Text Block] Research and Development Costs Research and Development Expense, Policy [Policy Text Block] Noncontrolling Interest Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Other Comprehensive Income (Loss) Comprehensive Income, Policy [Policy Text Block] Earnings (Loss) Per Share (EPS) Earnings Per Share, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Recently Issued Accounting Standards and Recently Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill Goodwill and Intangible Assets Disclosure [Text Block] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] 2020 and 2014 Twenty Twelve and Twenty Fourteen Authorization [Member] Twenty Twelve and Twenty Fourteen Authorization [Member] Common Stock Repurchase Programs Equity, Class of Treasury Stock [Line Items] Common stock repurchased Treasury Stock, Value, Acquired, Cost Method Number of shares repurchased (in shares) Treasury Stock, Shares, Acquired Authorizations remaining Stock Repurchase Program, Remaining Authorized Repurchase Amount Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) Location Other income (expense)-net Other Nonoperating Income (Expense) [Member] Interest expense Interest Expense [Member] Effective portion of gains and losses on derivative instruments Derivative Instruments, Gain (Loss) [Line Items] Total gain (loss) reclassified from accumulated other comprehensive income (loss) Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Total gain (loss) recognized in income Derivative, Gain (Loss) on Derivative, Net Cash paid during the year for: Cash Paid During the Year [Abstract] Interest Interest Paid, Excluding Capitalized Interest, Operating Activities Income taxes, net of refunds Income Taxes Paid, Net Supplemental disclosures of non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Additions to property, plant and equipment included in accounts payable Capital Expenditures Incurred but Not yet Paid Additions to property, plant and equipment acquired under capital leases Noncash or Part Noncash Acquisition, Fixed Assets Acquired Statement of Cash Flows [Abstract] Operating Activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation, amortization and accretion Depreciation, Amortization and Accretion, Net Stock-based compensation Share-based Compensation Decrease in allowance for returns and markdowns Other Noncash Income (Expense) Loss (gain) on disposal of assets Gain (Loss) on Disposition of Property Plant Equipment Fixed asset and other long-lived asset impairment losses Impairment of Long-Lived Assets Held-for-use Goodwill and trade name impairment losses Non-cash restructuring charges Restructuring Charges, Noncash Restructuring Charges, Noncash Equity method investment losses Income (Loss) from Equity Method Investments Increase (decrease) in allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Period Increase (Decrease) Loss on extinguishment of debt Deferred income taxes and other Increase (Decrease) in Deferred Income Taxes Gain on business divestiture Gain (Loss) on Disposition of Business Contingent consideration remeasurement Changes in operating assets and liabilities, net of effect of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses Increase (Decrease) in Accrued Liabilities Income taxes Increase (Decrease) in Income Taxes Payable Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investing Activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Additions to property, plant and equipment Payments to Acquire Property, Plant, and Equipment Decrease (increase) in intangible and other assets Payments To (Proceeds From) Acquire Intangible And Other Assets Payments To (Proceeds From) Acquire Intangible And Other Assets Proceeds from the sale of property, plant, equipment and other Proceeds from Sale of Property, Plant, and Equipment Misfit escrow receipts Proceeds From Working Capital Settlement Proceeds From Working Capital Settlement Net investment hedge settlement Payments for (Proceeds from) Hedge, Investing Activities Business divestiture Proceeds from Divestiture of Businesses Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Financing Activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Acquisition of common stock Payments for Repurchase of Common Stock Distribution of noncontrolling interest earnings and other Payments of Ordinary Dividends, Noncontrolling Interest Debt borrowings Proceeds from Notes Payable Debt payments Payment for shares Other financing activities Proceeds from (Payments for) Other Financing Activities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents, and restricted cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Net increase (decrease) in cash and cash equivalents, and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents, and restricted cash: Cash and Cash Equivalents, at Carrying Value [Abstract] Beginning of year End of year Allowance for doubtful accounts receivable Allowance For Doubtful Accounts Receivable and Sales Returns Current Valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible and valuation allowance for the amount of products sold that the entity expects to be returned by the purchaser. Range of Exercise Prices Price [Axis] Information by range of exercise prices. Price [Domain] Price [Domain] Identification of range of exercise prices. $13.65 - $29.49 Range One Of Exercise Prices [Member] Represents the exercise price range one of the outstanding stock options. $36.73 - $70.12 Range Two Of Exercise Prices [Member] Represents the exercise price range two of the outstanding stock options. $80.22 - $127.84 Range Three Of Exercise Prices [Member] Represents the exercise price range three of the outstanding stock options. $128.29 - $131.46 Range Four Of Exercise Prices [Member] Represents the exercise price range four of the outstanding stock options. Stock options Employee And Nonemployee Stock Option [Member] An arrangement whereby an employee or non-employee is entitled to receive in the future, subject to vesting and other restrictions, a number of shares in the entity at a specified price, as defined in the agreement. Stock appreciation rights Stock Appreciation Rights (SARs) [Member] Cash stock appreciation rights Cash Stock Appreciation Rights [Member] Cash Stock Appreciation Rights [Member] Low range of exercise price range (USD per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit High range of exercise price range (USD per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Stock options outstanding, number of shares (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Stock options outstanding, weighted-average exercise price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Stock options outstanding, weighted-average remaining contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Stock options exercisable, number of shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Stock options exercisable, weighted-average exercise price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share based compensation shares authorized under equity plans other than options exercise price range lower range limit Share Based Compensation Shares Authorized Under Equity Plans Other than Options Exercise Price Range Lower Range Limit The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock appreciation rights awards on all stock appreciation rights plans and other required information pertaining to awards in the customized range. Share based compensation shares authorized under equity plans other than options exercise price range upper range limit Share Based Compensation Shares Authorized Under Equity Plans Other than Options Exercise Price Range Upper Range Limit The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock appreciation rights awards on all stock appreciation rights plans and other required information pertaining to awards in the customized range. Stock appreciation rights outstanding, number of shares Stock appreciation rights outstanding, weighted- average exercise price (in dollars per share) Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Outstanding Weighted Average Exercise Price Weighted average price at which grantees can acquire the shares reserved for issuance under the stock compensation plan, other than options. Stock appreciation rights outstanding, weighted- average remaining contractual term Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Stock appreciation rights exercisable, number of shares Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Exercisable Number The number of shares into which equity instruments other than options outstanding as of the balance sheet date can be currently converted under the stock-based compensation plan. Stock appreciation rights exercisable, weighted- average exercise price (in dollars per share) Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Exercisable Weighted Average Exercise Price The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on equity instruments, other than options, outstanding and currently exercisable under the stock-based compensation plan. Summary of supplemental cash flow information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Consigned inventory Inventory Materials Supplies and Merchandise under Consignment Net of Reserves Represents the carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of inventory owned by the entity but in the hands of a customer, typically a reseller. Operating Leases Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Capital Leases Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 Capital Leases, Future Minimum Payments Due, Next Twelve Months 2020 Capital Leases, Future Minimum Payments Due in Two Years 2021 Capital Leases, Future Minimum Payments Due in Three Years 2022 Capital Leases, Future Minimum Payments Due in Four Years 2023 Capital Leases, Future Minimum Payments Due in Five Years Thereafter Capital Leases, Future Minimum Payments Due Thereafter Total Capital Leases, Future Minimum Payments Due Less amounts representing interest Capital Leases, Future Minimum Payments, Interest Included in Payments Capital lease obligations Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2016 long term incentive plan Long Term Incentive Plan 2016 [Member] Long Term Incentive Plan 2016 [Member] 2008 long term incentive plan Two Thousand Eight Long Term Incentive Plan [Member] Represents information pertaining to the 2008 Long-Term Incentive Plan entered into by the entity. Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Nonemployee director Non Employee Director [Member] Represents information pertaining to the director who is not an officer or an employee of the entity. Restricted stock units Restricted Stock Units (RSUs) [Member] Long-Term Incentive Plans Number of common shares reserved for issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Number of additional shares of common stock (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Term of award under the plan Share Based Compensation Arrangement by Share Based Payment Award, Term The term of equity-based award agreement, which may be presented in a variety of ways (for example, year, month and year, day, month and year, quarter of a year). Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Value of awards granted Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options Grants Total Value Value of equity-based payment equity instruments, other than options, granted. Vesting percentage of awards granted Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Reduction of annual grant Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Reduction of Aggregate Intrinsic Value, Percent Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Reduction of Aggregate Intrinsic Value, Percent Restricted stock units fair market value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding Number of outstanding awards (in shares) New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Forecast Scenario, Forecast [Member] Accounting Standards Update 2016-02 Accounting Standards Update 2016-02 [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Right-of-use asset Operating Lease, Right-of-Use Asset Operating lease liability Operating Lease, Liability Adoption of ASU 2018-02 Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Switzerland SWITZERLAND France FRANCE Employee Benefit Plans Defined Benefit Plan Disclosure [Line Items] Fair value of restricted stock and restricted stock units, vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Pension gain (expense) Pension and Other Postretirement Benefits Cost (Reversal of Cost) Employee benefit plan obligations included in other long-term liabilities Liability, Defined Benefit Pension Plan, Noncurrent Expected total restructuring charges Restructuring and Related Cost, Expected Cost Inventory Disclosure [Abstract] Inventories Inventory Disclosure [Text Block] Schedule of Income Tax [Table] Schedule of Income Tax [Table] Schedule of information pertaining to income taxes. Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] U.S. income tax Domestic Tax Authority [Member] Foreign income tax Foreign Tax Authority [Member] Income tax contingency Income Tax [Line Items] Loss carryforwards Operating Loss Carryforwards Tax expense reduced from exercise of non-qualified stock options and stock appreciation rights and vesting of restricted stock and restricted stock units Deferred Tax Expense from Stock Options Exercised Deferred income tax (benefit) expense Tax Cuts and Jobs Act of 2017, change in tax rate, deferred income tax asset valuation allowance increase Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset Valuation Allowance, Provisional Income Tax Expense (Benefit) Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset Valuation Allowance, Provisional Income Tax Expense (Benefit) Tax Cuts and Jobs Act of 2017, valuation allowance, recorded directly to equity Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset Valuation Allowance, Provisional Income Tax Expense (Benefit), Allocated To Equity Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset Valuation Allowance, Provisional Income Tax Expense (Benefit), Allocated To Equity Undistributed earnings of certain foreign subsidiaries Undistributed Earnings of Foreign Subsidiaries Tax Cuts And Jobs Act Of 2017, existing undistributed accumulated earnings of foreign subsidiary Tax Cuts And Jobs Act Of 2017, Existing Undistributed Accumulated Earnings Of Foreign Subsidiary Tax Cuts And Jobs Act Of 2017, Existing Undistributed Accumulated Earnings Of Foreign Subsidiary Unrecognized tax benefits that would favorably impact the effective tax rate in future periods if recognized Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized tax benefits excluding interest and penalties Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit Accrued income tax-related interest Unrecognized Tax Benefits, Interest on Income Taxes Accrued Penalties accrued Unrecognized Tax Benefits, Income Tax Penalties Accrued Accrued interest (benefit) expense Unrecognized Tax Benefits, Interest on Income Taxes Expense Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Interest rate contracts Interest Rate Contract [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Prepaid expenses and other current assets Prepaid Expenses and Other Current Assets [Member] Intangible and other assets-net Intangible And Other Assets [Member] Line item in the statement of financial position Accrued expenses-other Accrued Expenses Other [Member] Line item in the statement of financial position in which the fair value amounts of the derivative instruments are included. Other long-term liabilities Other Liabilities [Member] Fair value of derivative instruments Derivatives, Fair Value [Line Items] Asset Derivatives Derivative Asset, Fair Value, Gross Asset Liability Derivatives Derivative Liability, Fair Value, Gross Liability Gain expected to be reclassified into earnings within the next twelve months Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months Statement of Financial Position [Abstract] Current assets: Assets, Current [Abstract] Accounts receivable-net Total current assets Assets, Current Intangible and other assets-net Total long-term assets Assets, Noncurrent Total assets Assets Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Short-term and current portion of long-term debt Debt, Current Accrued expenses: Accrued Liabilities, Current [Abstract] Compensation Employee-related Liabilities, Current Royalties Accrued Royalties, Current Transaction taxes Taxes Payable, Current Other Other Accrued Liabilities, Current Income taxes payable Accrued Income Taxes, Current Total current liabilities Liabilities, Current Long-term income taxes payable Accrued Income Taxes, Noncurrent Deferred income tax liabilities Deferred Income Tax Liabilities, Net Long-term debt Long-term Debt and Capital Lease Obligations Other long-term liabilities Other Liabilities, Noncurrent Total long-term liabilities Liabilities, Noncurrent Commitments and contingencies (Note 14) Commitments and Contingencies Stockholders' equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Common stock, 49,518 and 48,643 shares issued and outstanding at December 29, 2018 and December 30, 2017, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Total Fossil Group, Inc. stockholders' equity Stockholders' Equity Attributable to Parent Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest Total stockholders' equity Total liabilities and stockholders' equity Liabilities and Equity Prepaid royalties Prepaid Royalties Prepaid taxes and tax receivables Prepaid Taxes Other receivables Other Receivables, Net, Current Forward contracts Derivative Asset, Current Inventory returns Contract with Customer, Right to Recover Product, Current Prepaid rent Prepaid Rent Property held for sale Assets Held-for-sale, Not Part of Disposal Group, Current Short term deposits Deposit Assets Other Other Assets, Current Prepaid expenses and other current assets Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares issued (in shares) Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Balance at beginning of year Unrecognized Tax Benefits Gross increases—tax positions in prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Gross decreases—tax positions in prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Gross increases—tax positions in current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Lapse in statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Change due to currency revaluation Unrecognized Tax Benefits Increase (decrease) Due To Currency Revaluation The net amount of increases and decreases in unrecognized tax benefits for the period due to currency revaluation. Balance at end of year Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Store closures Store Closure [Member] Store Closure [Member] Professional services Professional Services [Member] Professional Services [Member] Severance and employee-related benefits Employee Severance [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Balance at beginning of period Restructuring Reserve Charges Cash payments Payments for Restructuring Non-cash items Restructuring Reserve, Settled without Cash Balance at end of period Schedule of changes in the carrying amount of goodwill Schedule of Goodwill [Table Text Block] Total gain (loss) recognized in other comprehensive income (loss), net of taxes Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Currency Translation Adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Cash Flow Hedges Pension Plan Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] AOCI Attributable to Parent Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Tax (expense) benefit Other Comprehensive Income (Loss) before Reclassifications, Tax Amounts reclassed from accumulated other comprehensive income (loss) Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Tax (expense) benefit Reclassification from AOCI, Current Period, Tax Reclassification of certain tax effects to retained earnings Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating segments Operating Segments [Member] Corporate Corporate, Non-Segment [Member] Components and parts Inventory, Raw Materials and Purchased Parts, Net of Reserves Work-in-process Inventory, Work in Process, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Inventories Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Beginning balance Goodwill Foreign currency changes Goodwill, Foreign Currency Translation Gain (Loss) Impairment charges Ending balance Goodwill Schedule of weighted average assumptions for the stock options and stock appreciation rights grants Schedule of Share Based Payment Award, Stock Options and Stock Appreciation Rights Valuation Assumptions [Table Text Block] Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options and stock appreciation rights, including, but not limited to: (a) expected term, (b) expected volatility, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Summary of stock options and stock appreciation rights activity Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity [Table Text Block] Summary of stock options and stock appreciation rights outstanding and exercisable Share-based Compensation, Activity [Table Text Block] Summary of restricted stock and restricted stock unit activity Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Warranty Liabilities Product Warranty Disclosure [Text Block] Common stock, shares issued (in shares) Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Interest income Interest Income, Operating Contingent consideration remeasurement Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net Gain on interest rate swap Gain (Loss) on Sale of Derivatives Equity in losses of unconsolidated investment Extinguishment of debt Extinguishment of Debt, Amount Gain on divestiture Net currency (losses) gains Other net gains Other Nonoperating Gains (Losses) Other income (expense) - net Long-term restricted cash balance Restricted Cash and Cash Equivalents, Noncurrent Summary information by operating segment Net Sales Operating Income (Loss) Depreciation and Amortization Depreciation, Depletion and Amortization, Nonproduction Long-term Assets Total Assets Schedule of rollforward of the liability incurred for restructuring plan Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Schedule of restructuring charges by operating segment Restructuring and Related Costs [Table Text Block] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Assets: Forward contracts Foreign Currency Contract, Asset, Fair Value Disclosure Investment in publicly traded mutual funds Defined Benefit Plan, Plan Assets, Amount Interest rate swap Interest Rate Derivative Assets, at Fair Value Total Assets, Fair Value Disclosure Contingent consideration Business Combination, Contingent Consideration, Liability Forward contracts Foreign Currency Contracts, Liability, Fair Value Disclosure Total Financial and Nonfinancial Liabilities, Fair Value Disclosure Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Revenue recognized at a point in time Transferred at Point in Time [Member] Revenue recognized over time Transferred over Time [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Schedule of Product Information [Table] Schedule of Product Information [Table] FOSSIL watch products Fossil Watch Products [Member] Identifies name or type of a product or service, or a group of similar products or similar services, for which the entity reported revenue from external customers during the period. RELIC watch products Relic Watch Products [Member] RELIC watch products sold by the entity. Other non-watch products Other Non-Watch Products [Member] Other Non-Watch Products [Member] Product Information [Line Items] Product Information [Line Items] Warranty period Standard Product Warranty Period Represents the period of the standard product warranty. Warranty liability activity Movement in Standard Product Warranty Accrual [Roll Forward] Beginning balance Standard Product Warranty Accrual Settlements in cash or kind Standard Product Warranty Accrual, Decrease for Payments Warranties issued and adjustments to preexisting warranties Warranties Issued and Adjustments to Preexisting Warranties Warranties Issued And Adjustments To Preexisting Warranties. Ending balance Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States UNITED STATES Europe Europe [Member] Asia Asia Pacific [Member] All other international Countries Other Than United States Europe And Asia Pacific [Member] Represents information pertaining to all countries other than United States, Europe and Asia Pacific. Germany GERMANY Document and Entity Information Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Public Float Entity Public Float Entity Common Stock, Shares Outstanding (in shares) Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Tax Period [Axis] Tax Period [Axis] Tax Period [Domain] Tax Period [Domain] Expires 2019 through 2023 Expiration Period One [Member] Expiration Period One [Member] Expires 2024 through 2028 Expiration Period Two [Member] Expiration Period Two [Member] Expires 2029 through 2033 Expiration Period Three [Member] Expiration Period Three [Member] Expires 2034 through 2038 Expiration Period Four [Member] Expiration Period Four [Member] Indefinite Indefinite Tax Year [Member] Indefinite Tax Year Operating loss carryforwards Operating Loss Carryforwards [Line Items] Total loss carryforwards Schedule of inventories Schedule of Inventory, Current [Table Text Block] Schedule of prepaid expenses and other current assets Schedule of Prepaid Expenses and Other Current Assets [Table Text Block] Represent the Schedule Of Prepaid Expenses And Other Current Assets. Cost method investments Cost Method Investments