Commitments and Contingencies Disclosure [Abstract] Summary of Commitments in Respect of Corporate-Owned Stores Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Accounting Policies [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] Furniture and fixtures Furniture and Fixtures [Member] Computer hardware and software Computer Equipment [Member] Equipment and vehicles Equipment [Member] Depreciation and Amortization Expenses For Property Plant And Equipment Depreciation And Amortization Expenses For Property Plant And Equipment [Line Items] Depreciation and Amortization Expenses For Property Plant And Equipment [Line Items] Property and equipment, amortization rate Property And Equipment Amortization Rate Property and equipment amortization rate. Income Tax Disclosure [Abstract] Federal income tax at statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Foreign tax rate differentials Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent U.S. state taxes Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Non-deductible compensation expense Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent Permanent and other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Transfer pricing adjustments, net Effective Income Tax Rate Reconciliation, Transfer Pricing Adjustment, Percent Effective Income Tax Rate Reconciliation, Transfer Pricing Adjustment, Percent Tax on repatriation of foreign earnings Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent Tax adjustment on foreign tax credit calculations Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent Effective tax rate Effective Income Tax Rate Reconciliation, Percent Operating lease term minimum Operating Lease Term Minimum Operating lease term minimum. Operating lease term maximum Operating Lease Term Maximum Operating lease term maximum. Rental expense Operating Leases, Rent Expense, Net Operating leases, rent expense, minimum rentals Operating Leases, Rent Expense, Minimum Rentals Operating leases, rent expense, contingent rentals Operating Leases, Rent Expense, Contingent Rentals Initial franchise agreement term Initial Franchise Agreement Term Initial Franchise Agreement Term Number of franchised retail locations in operation Number Of Franchised Retail Locations In The Middle East Number Of Franchised Retail Locations In The Middle East Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information (Unaudited) Quarterly Financial Information [Text Block] Segment Reporting [Abstract] Detailed Segments Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Revenues and long-lived assets by geographic area Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Document Document And Entity Information [Abstract] Document Document and Entity Information [Abstract] Document Information [Table] Document Information [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Entity Information [Line Items] Entity Information [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Public Float Entity Public Float Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Employee Stock Option Employee Stock Option [Member] Performance-Based Restricted Stock Units Performance-Based Restricted Stock Units [Member] Performance-Based Restricted Stock Units. Restricted Stock Restricted Stock [Member] Restricted Stock Units Restricted Stock Units (RSUs) [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of Stock Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Number of Stock Options, Beginning Balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Number of Stock Options, Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Number of Stock Options, Exercised/vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Number of Stock Options, Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Number of Stock Options, Ending Balance (in shares) Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Weighted-Average Exercise Price, Beginning Balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted-Average Exercise Price, Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Weighted-Average Exercise Price, Exercised/vested (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Weighted-Average Exercise Price, Forfeited (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Weighted-Average Exercise Price, Ending Balance (in dollars per share) Number of Performance-Based Restricted Stock Units, Restricted Shares, and Restricted Stock Units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Number of Shares, Beginning Balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Number of Shares, Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Number of Shares, Exercised/vested (in shares) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercised In Period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercised In Period Number of Shares, Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Number of Shares, Ending Balance (in shares) Weighted-Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Weighted-Average Grant Fair Value, Beginning Balance (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 Weighted-Average Grant 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 Weighted-Average Grant Fair Value, Exercised/vested (in dollars per share) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercised In Period Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercised In Period Weighted Average Grant Date Fair Value Weighted-Average Grant 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 Weighted-Average Grant Fair Value, Ending Balance (in dollars per share) Inventory Disclosure [Abstract] Finished goods Inventory, Finished Goods, Gross Provision to reduce inventory to market value Inventory Valuation Reserves Total inventories Inventory, Net Inventories Inventory Disclosure [Text Block] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Exercise Price Range [Axis] Exercise Price Range [Axis] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] $0.25 – $38.25 Exercise Price Range One [Member] Exercise Price Range One [Member] $44.20 - $46.12 Exercise Price Range Two [Member] Exercise Price Range Two [Member] $48.30 - $53.44 Exercise Price Range Three [Member] Exercise Price Range Three [Member] $53.79 - $57.25 Exercise Price Range Four [Member] Exercise Price Range Four [Member] $57.88 - $76.49 Exercise Price Range Five [Member] Exercise Price Range Five [Member] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] Range of Exercise Prices, Lower Limit (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit Range of Exercise Prices, Upper Limit (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Number of Options, Outstanding (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Weighted-Average Exercise Price, Outstanding (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price Weighted-Average Remaining Life (Years), Outstanding Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term Number of Options, Exercisable (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options Weighted-Average Exercise Price, Exercisable (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price Weighted-Average Remaining Life (Years), Exercisable Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term Intrinsic value, Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Intrinsic value, Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Summary of Company's Stock Option, Performance Stock Unit and Restricted Share Activity Summary of Stock Option Performance Stock Unit And Restricted Share Activity [Table Text Block] Summary of Stock Option Performance Stock Unit And Restricted Share Activity [Table Text Block] Summary of Information About Stock Options Outstanding and Exercisable Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Summary Of Intrinsic Value Of Options Exercised And Full Awards Vested Schedule Of Intrinsic Value Of Options Exercised And Full Awards Vested [Table Text Block] Schedule Of Intrinsic Value Of Options Exercised And Full Awards Vested [Table Text Block] Fair Value of Stock Options Issued Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Entity Location [Table] Entity Location [Table] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Canadian Subsidiary Canadian Subsidiary [Member] Canadian Subsidiary [Member] Entity by Location [Axis] Entity by Location [Axis] Location [Domain] Location [Domain] Outside United States Outside United States [Member] Outside United States [Member] Canada CANADA Entity Location [Line Items] Entity Location [Line Items] Undistributed foreign earnings including amounts expected to be repatriated Undistributed Earnings Of Foreign Subsidiaries, Including Earnings Expected To Be Repatriated Undistributed Earnings Of Foreign Subsidiaries, Including Earnings Expected To Be Repatriated Undistributed earnings of foreign subsidiaries indefinitely reinvested outside the United States Undistributed Earnings of Foreign Subsidiaries Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Net interest expense Effective Income Tax Rate Reconciliation, Interest Expense, Amount Effective Income Tax Rate Reconciliation, Interest Expense, Amount Effective Income Tax Rate Reconciliation, Transfer Pricing Adjustment, Amount Effective Income Tax Rate Reconciliation, Transfer Pricing Adjustment, Amount Effective Income Tax Rate Reconciliation, Transfer Pricing Adjustment, Amount Potential income tax adjustment if terms of the final APA differ from the Company's assessment Effective Income Tax Rate Reconciliation, Advance Pricing Arrangement, Potential Amount Effective Income Tax Rate Reconciliation, Advance Pricing Arrangement, Potential Amount Tax on repatriation of foreign earnings Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount Repatriated earnings Foreign Earnings Repatriated Maximum amount Company intends to distribute to the U.S. parent entity Undistributed Earnings of Foreign Subsidiaries, Expected To Be Distributed Undistributed Earnings of Foreign Subsidiaries, Expected To Be Distributed Undistributed earnings of foreign subsidiaries, tax effect Undistributed Earnings of Foreign Subsidiaries, Tax Effect Undistributed Earnings of Foreign Subsidiaries, Tax Effect Recognition of income tax recovery Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Basis of presentation Basis of Accounting, Policy [Policy Text Block] Fiscal period Fiscal Period, Policy [Policy Text Block] Principles of consolidation Consolidation, Policy [Policy Text Block] Cash and cash equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Accounts receivable Receivables, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Property and equipment Property, Plant and Equipment, Policy [Policy Text Block] Goodwill and intangible assets Goodwill and Intangible Assets, Policy [Policy Text Block] Impairment of long-lived assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Leased property and equipment Leased Property And Equipment Policy [Policy Text Block] Leased property and equipment. Deferred revenue Revenue Recognition, Deferred Revenue [Policy Text Block] Revenue recognition Revenue Recognition, Policy [Policy Text Block] Cost of goods sold Cost of Sales, Policy [Policy Text Block] Selling, general and administrative expenses Selling, General and Administrative Expenses, Policy [Policy Text Block] Store pre-opening costs Store Preopening Costs Policy [Policy Text Block] Store pre-opening costs. Income taxes Income Tax, Policy [Policy Text Block] Currency translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Fair value of financial instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Concentration of credit risk Concentration Of Credit Risk Policy [Policy Text Block] Concentration of credit risk. Stock-based compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Earnings per share Earnings Per Share, Policy [Policy Text Block] Contingencies Commitments and Contingencies, Policy [Policy Text Block] Use of estimates Use of Estimates, Policy [Policy Text Block] Recent accounting pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Total Operating Leases, Future Minimum Payments Due 2016 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2017 Operating Leases, Future Minimum Payments, Due in Two Years 2018 Operating Leases, Future Minimum Payments, Due in Three Years 2019 Operating Leases, Future Minimum Payments, Due in Four Years 2020 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Statement of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Net Income (Loss) Attributable to Parent Items not affecting cash Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Stock-based compensation expense Share-based Compensation Derecognition of unredeemed gift card liability Derecognition Of Unredeemed Gift Card Liability Derecognition of unredeemed gift card liability. Deferred income taxes Increase (Decrease) in Deferred Income Taxes Tax benefits from stock-based compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Changes in operating assets and liabilities Increase (Decrease) in Operating Capital [Abstract] Inventories Increase (Decrease) in Inventories Prepaid and receivable income taxes Increase (Decrease) in Prepaid Taxes Other prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued inventory liabilities Increase (Decrease) In Accrued Inventory Liabilities Increase (Decrease) In Accrued Inventory Liabilities Accrued compensation and related expenses Increase (Decrease) in Employee Related Liabilities Income taxes payable Increase (Decrease) in Income Taxes Payable Unredeemed gift card liability Increase (Decrease) in Deferred Revenue Other accrued liabilities Increase (Decrease) in Other Operating Liabilities Other non-current assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Purchase of property and equipment Payments to Acquire Property, Plant, and Equipment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from settlement of stock-based compensation Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Tax benefits from stock-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Taxes paid related to net share settlement of stock-based compensation Payments Related to Tax Withholding for Share-based Compensation Repurchase of common stock Payments for Repurchase of Common Stock Registration fees associated with prospectus supplement Payments of Stock Issuance Costs Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents (Decrease) increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Valuation and Qualifying Accounts [Abstract] Valuation and Qualifying Accounts Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Lease costs for one company-operated store Occupancy Costs [Member] Occupancy Costs [Member] Consulting fees Consulting Fees [Member] Consulting Fees [Member] Related Party Transaction Related Party Transaction [Line Items] Payments To Related Parties [Abstract] Payments To Related Parties [Abstract] Payments to related parties. Related party transaction costs Related Party Transaction, Expenses from Transactions with Related Party Accounts Payable and Accrued Liabilities [Abstract] Accrued duty, freight, and other operating expenses Accrued Shipping Fees, Current Accrued Shipping Fees, Current Sales tax collected Sales and Excise Tax Payable, Current Accrued rent Accrued Rent, Current Other Other Miscellaneous Accrued Liabilities Other miscellaneous accrued liabilities. Total other accrued liabilities Other Accrued Liabilities, Current Property, Plant and Equipment [Abstract] Summary of Property and Equipment Property, Plant and Equipment [Table Text Block] Nature of Operations and Basis of Presentation Business Description and Basis of Presentation [Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Geographical [Axis] Geographical [Axis] Segment, Geographical [Domain] Geographical [Domain] United States UNITED STATES Outside of North America Outside Of North America [Member] Outside Of North America [Member] Revenues from External Customers and Long-Lived Assets Revenues from External Customers and Long-Lived Assets [Line Items] Number of geographic areas Number Of Geographic Segments Number of geographic segments. Net revenue Revenue, Net Property and equipment, net Property, Plant and Equipment, Net Segmented Financial Information Segment Reporting Disclosure [Text Block] Other Accrued Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments Operating Segments [Member] Corporate Corporate, Non-Segment [Member] Business Segments [Axis] Segments [Axis] Segment [Domain] Segments [Domain] Company-operated stores Corporate Owned Stores [Member] Corporate owned stores. Direct to consumer Direct To Consumer [Member] Direct to consumer. Other Segment Other [Member] Segment Other [Member] Segment Reporting Information Segment Reporting Information [Line Items] Net revenue Revenue, Net [Abstract] Income from operations before general corporate expense Operating Income (Loss) [Abstract] Income from operations before general corporate expense Income From Operations Before General Corporate Expense Income from operations before general corporate expense. General corporate expense General Corporate Expenses General corporate expenses. Income from operations Operating Income (Loss) Other (expense) income, net Other Nonoperating Income (Expense) Income before income tax expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Capital expenditures Payments to Acquire Productive Assets [Abstract] Capital expenditures Payments to Acquire Property, Plant and Equipment Including Franchises Payments to Acquire Property, Plant and Equipment Including Franchises Depreciation and amortization Depreciation, Depletion and Amortization [Abstract] Company's Current and Deferred Taxes from Federal, State and Foreign Sources Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Tax Effects of Temporary Differences of Deferred Tax Assets and Deferred Tax Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] 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] Franchise rights Franchise Rights [Member] Building Building [Member] Leasehold Improvements Leaseholds and Leasehold Improvements [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Inventory write off Inventory Write-down Estimated useful life of assets Property, Plant and Equipment, Useful Life Estimated useful lives of goodwill and intangible assets Finite-Lived Intangible Asset, Useful Life Net revenue on unredeemed gift card balances Net Revenue On Unredeemed Gift Card Balance Net revenue on unredeemed gift card balance. Transportation costs Shipping, Handling and Transportation Costs Aggregate foreign exchange (losses) gains included in income amount Foreign Currency Transaction Gain (Loss), before Tax Related Party Balances and Transactions Related Party Transactions Disclosure [Text Block] Income before income tax expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract] Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Current income tax expense (recovery) Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State Current State and Local Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Total current Current Income Tax Expense (Benefit) Deferred income tax expense (recovery) Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Total deferred Deferred Income Tax Expense (Benefit) Provision for income taxes Income Tax Expense (Benefit) Supplemental Cash Flow Information [Abstract] Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Land Land Buildings Buildings and Improvements, Gross Leasehold improvements Leasehold Improvements, Gross Furniture and fixtures Furniture and Fixtures, Gross Computer hardware Computer Hardware, Gross Computer Hardware, Gross Computer software Computer Software, Gross Computer Software, Gross Equipment and vehicles Equipment And Vehicles Gross Equipment and vehicles, Gross. Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Total property and equipment Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common Stock Common Stock [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2014 Equity Incentive Plan Two Thousand Fourteen Equity Incentive Plan [Member] Two Thousand Fourteen Equity Incentive Plan [Member] Employee Stock Employee Stock [Member] Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Stock options granted vesting rate Stock Options Granted Vesting Rate Stock options granted vesting rate. Expiration period Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Stock-based compensation expense Allocated Share-based Compensation Expense Unrecognized compensation cost for all stock-based compensation plans Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Unrecognized compensation cost for all stock-based compensation plans, recognition period Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Company match percentage for ESPP Share-Based Compensation Arrangement By Share-Based Compensation Award, Company Match Contribution, Employee Stock Purchase Plan, Percent Share-Based Compensation Arrangement By Share-Based Compensation Award, Company Match Contribution, Employee Stock Purchase Plan, Percent Maximum shares available under plan Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Shares issues for ESPP Stock Issued During Period, Shares, Employee Stock Purchase Plans Common stock per performance share unit Maximum Number Of Common Share Employee Is Eligible For Each Performance Unit Maximum number of common share employee is eligible for each performance unit. Total aggregate intrinsic value for stock options outstanding and exercisable Weighted-average grant date fair value of granted shares (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Deferred income tax assets Deferred Tax Assets, Gross [Abstract] Net operating loss carry forward Deferred Tax Assets, Operating Loss Carryforwards Property and equipment Deferred Tax Assets, Property, Plant and Equipment Deferred lease liability Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent Stock-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Inventory Deferred Tax Assets, Inventory Tenant inducements Deferred Tax Assets Tenant Inducements Deferred tax assets tenant inducements. Other Deferred Tax Assets, Other Total deferred tax assets Deferred Tax Assets, Gross Deferred income tax liabilities Deferred Tax Liabilities, Gross [Abstract] Property and equipment Deferred Tax Liabilities, Property, Plant and Equipment Tax and related interest adjustments Deferred Tax Liabilities, Tax And Related Interest Adjustments Deferred Tax Liabilities, Tax And Related Interest Adjustments Deferred lease liability Deferred Tax Liabilities, Leasing Arrangements Tenant inducements Deferred Tax Liabilities, Tenant Inducements Deferred Tax Liabilities, Tenant Inducements Inventory Deferred Tax Liabilities, Inventory Foreign tax credits Deferred Tax Liabilities, Tax Credit Carryforwards, Foreign Deferred Tax Liabilities, Tax Credit Carryforwards, Foreign Stock-based compensation Deferred Tax Liability, Deferred Expense, Compensation And Benefits, Share-Based Compensation Cost Deferred Tax Liability, Deferred Expense, Compensation And Benefits, Share-Based Compensation Cost Other Deferred Tax Liabilities, Other Total deferred tax liabilities Deferred Tax Liabilities, Gross Net deferred income tax assets Deferred Tax Assets, Net Expected term 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, Weighted Average Volatility Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock options Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Full awards, vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Total Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments, Intrinsic Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments, Intrinsic Value Statement of Financial Position [Abstract] Undesignated preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Undesignated preferred stock, shares authorized Preferred Stock, Shares Authorized Undesignated preferred stock, shares issued Preferred Stock, Shares Issued Undesignated preferred stock, shares outstanding Preferred Stock, Shares Outstanding Exchangeable stock, shares authorized Exchangeable Stock Shares Authorized Exchangeable stock, shares authorized. Exchangeable stock, shares issued Exchangeable Stock Shares Issued Exchangeable stock, shares issued. Exchangeable stock, shares outstanding Exchangeable Stock Shares Outstanding Exchangeable stock, shares outstanding. Special voting stock, par value (in dollars per share) Special Voting Stock Par Value Special voting stock, par value. Special voting stock, shares authorized Special Voting Stock Shares Authorized Special voting stock, shares authorized. Special voting stock, shares issued Special Voting Stock Shares Issued Special voting stock, shares issued. Special voting stock, shares outstanding Special Voting Stock Shares Outstanding Special voting stock, shares outstanding. Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Debt Disclosure [Abstract] Long-Term Debt and Credit Facilities Long-term Debt [Text Block] Goodwill Goodwill Before Translation Adjustments Goodwill before translation adjustments. Changes in foreign currency exchange rates Goodwill, Translation Adjustments Goodwill, net Goodwill Net Of Translation Adjustments Goodwill net of translation adjustments. Intangibles—reacquired franchise rights Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Changes in foreign currency exchange rates Finite Lived Intangible Asset Translation Adjustments Finite-Lived Intangible Asset, Translation Adjustments Intangibles, net Finite-Lived Intangible Assets, Net Goodwill and intangible assets, net Intangible Assets, Net (Including Goodwill) Stockholders' Equity Note [Abstract] Number of votes for the holders of special voting stock Common Stock, Special Voting Stock Votes Per Share Common Stock, Special Voting Stock Votes Per Share Maturity period for conversion of exchangeable shares into common shares Maturity Period For Conversion Of Exchangeable Shares Into Common Shares Maturity period for conversion of exchangeable shares into common shares. Conversion of exchangeable shares into common shares, maximum conversion threshold Common Stock, Exchangeable Shares, Maximum Share Conversion Threshold Common Stock, Exchangeable Shares, Maximum Share Conversion Threshold 2016 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Three Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Summary of Inventories Schedule of Inventory, Current [Table Text Block] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Amortization expense related to intangible assets Amortization of Intangible Assets Weighted-average remaining useful life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Earnings Per Share [Abstract] Earnings Per Share Earnings Per Share [Text Block] Summary of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Transfer pricing adjustments, net Tax adjustment on foreign tax credit calculations Total tax adjustments Effective Income Tax Rate Reconciliation, Adjustments, Amount, Total Effective Income Tax Rate Reconciliation, Adjustments, Amount, Total Cash paid for income taxes Income Taxes Paid Interest paid Interest Paid Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Valuation and Qualifying Accounts Disclosure [Table] Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Shrink Provision on Finished Goods Shrink Provision On Finished Goods [Member] Shrink provision on finished goods. Slow Moving and Obsolescence Provision on Finished Goods and Raw Materials Slow Moving And Obsolescence Provision On Finished Goods And Raw Materials [Member] Slow moving and obsolescence provision on finished goods and raw materials. Damage Provision on Finished Goods Damage Provision On Finished Goods [Member] Damage provision on finished goods. Sales Return Allowances Allowance for Sales Returns [Member] Valuation Allowance on Deferred Income Taxes Valuation Allowance of Deferred Tax Assets [Member] Valuation and Qualifying Accounts Disclosure Valuation and Qualifying Accounts Disclosure [Line Items] Movement in Valuation Allowances and Reserves [Roll Forward] Movement in Valuation Allowances and Reserves [Roll Forward] Balance at Beginning of Year Valuation Allowances and Reserves, Balance Charged to Costs and Expenses Valuation Allowances and Reserves, Charged to Cost and Expense Write-offs Net of Recoveries Valuation Allowances and Reserves, Deductions Balance at End of Year Summary of Goodwill and Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] Summary of Amortization Expense Related to Intangible Assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Computer software Capitalized Computer Software, Gross Depreciation expense related to property and equipment Depreciation Computation of Basic and Diluted Earning Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] ASSETS Assets [Abstract] Current assets Assets, Current [Abstract] Accounts receivable Receivables, Net, Current Inventories Prepaid and receivable income taxes Prepaid Taxes Other prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Goodwill and intangible assets, net Deferred income tax assets Other non-current assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued inventory liabilities Accrued Inventory Liability, Current Accrued Inventory Liability, Current Accrued compensation and related expenses Deferred Compensation Liability, Current Income taxes payable Accrued Income Taxes, Current Unredeemed gift card liability Gift Card Liability, Current Other accrued liabilities Total current liabilities Liabilities, Current Deferred income tax liabilities Deferred Tax Liabilities, Net, Noncurrent Other non-current liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Undesignated preferred stock, $0.01 par value: 5,000 shares authorized; none issued and outstanding Preferred Stock, Value, Issued Exchangeable stock, no par value: 60,000 shares authorized; 9,804 and 9,833 issued and outstanding Exchangeable Stock Value Exchangeable stock Value. Special voting stock, $0.000005 par value: 60,000 shares authorized; 9,804 and 9,833 issued and outstanding Special Voting Stock Value Special Voting Stock Value. Common stock, $0.005 par value: 400,000 shares authorized; 127,482 and 132,112 issued and outstanding Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders' equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders' equity Liabilities and Equity Amortization of Property and Equipment Using Declining Balance Method Amortization Of Property And Equipment Using Declining Balance Method Table [Table Text Block] Amortization of property and equipment using declining balance method. Other Liabilities Disclosure [Abstract] Summary of Other Non-Current Liabilities Non Current Liabilities Table [Table Text Block] Non Current Liabilities Table [Text Block] Income Statement [Abstract] Cost of goods sold Cost of Goods Sold Gross profit Gross Profit Selling, general and administrative expenses Selling, General and Administrative Expense Income tax expense Net income Other comprehensive loss: Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Basic earnings per share (in dollars per share) Earnings Per Share, Basic Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Basic weighted-average number of shares outstanding Weighted Average Number of Shares Outstanding, Basic Diluted weighted-average number of shares outstanding Weighted Average Number of Shares Outstanding, Diluted Basic weighted-average number of shares outstanding Assumed conversion of dilutive stock options and awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Diluted weighted-average number of shares outstanding Antidilutive securities excluded (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Amount authorized under repurchase program Stock Repurchase Program, Authorized Amount Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Repurchase of common stock, shares Stock Repurchased and Retired During Period, Shares Cost to repurchase common stock Stock Repurchased and Retired During Period, Value Line of Credit Facility [Table] Line of Credit Facility [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] U.S. Dollar Loans U.S. Dollar Loans [Member] U.S. Dollar Loans [Member] Letter of Credit Letter of Credit [Member] Canadian Dollar Loans Canadian Dollar Loans [Member] Canadian Dollar Loans [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] HSBC Bank Canada and Bank of America, N.A., Canada Branch HSBC Bank Canada and Bank of America, N.A., Canada Branch [Member] HSBC Bank Canada and Bank of America, N.A., Canada Branch [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] CDOR Canadian Dollar Offered Rate (CDOR) [Member] Canadian Dollar Offered Rate (CDOR) [Member] Line of Credit Facility Line of Credit Facility [Line Items] Revolving credit facilities for working capital requirements Line of Credit Facility, Maximum Borrowing Capacity Renewal period Line Of Credit Facility, Renewal Period Line Of Credit Facility, Renewal Period Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Borrowings outstanding under credit facility Long-term Line of Credit Letters of credit outstanding, amount Letters of Credit Outstanding, Amount Consolidated statements of operations and comprehensive income: Statement Consolidated Statements Of Operations And Comprehensive Income [Abstract] Statement Consolidated Statements Of Operations And Comprehensive Income [Abstract] Income Taxes Income Tax Disclosure [Text Block] Deferred lease liability Deferred Lease Liability Noncurrent Deferred lease liability noncurrent. Tenant inducements Tenant Inducements Noncurrent Tenant inducements noncurrent. Total other non-current liabilities Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Exchangeable Stock Exchangeable Stock [Member] Exchangeable Stock. Special Voting Stock Special Voting Stock [Member] Special Voting Stock Member. Additional Paid-In Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Total Parent [Member] Statement Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance, shares Shares, Issued Beginning balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Net income Common stock issued upon exchange of exchangeable shares, shares Stock Issued During Period, Shares, Conversion of Convertible Securities Common stock issued upon exchange of exchangeable shares Stock Issued During Period, Value, Conversion of Convertible Securities Stock-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Tax benefits from stock-based compensation Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Common stock issued upon settlement of stock-based compensation, shares Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Common stock issued upon settlement of stock-based compensation Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Shares withheld related to net share settlement of stock-based compensation, shares Shares Paid for Tax Withholding for Share Based Compensation Shares withheld related to net share settlement of stock-based compensation Adjustments Related to Tax Withholding for Share-based Compensation Repurchase of common stock, shares Repurchase of common stock Registration fees associated with prospectus supplement Registration Fees Registration Fees Ending balance, shares Ending balance Number of corporate-owned stores Number Of Corporate Owned Stores Using Related Party Retail Space Number of corporate owned stores using related party retail space Other Non-Current Liabilities Other Liabilities Disclosure [Text Block] Unaudited Quarterly Results of Operations Schedule of Quarterly Financial Information [Table Text Block] Number of stores Number of Stores Summary of Supplemental Cash Flow Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]