Equity [Abstract] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Cash Flow Hedges Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Beginning balance Stockholders' Equity Attributable to Parent Other comprehensive income (loss) before reclassification OCI, before Reclassifications, Net of Tax, Attributable to Parent Tax effect of other comprehensive income (loss) before reclassification Other Comprehensive Income (Loss) before Reclassifications, Tax Amount reclassified from AOCL Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Tax effect of amount reclassified from AOCL Reclassification from AOCI, Current Period, Tax Net current period other comprehensive income, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Ending balance Document And Entity Information [Abstract] Document And Entity Information [Abstract] 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 Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Revenue from Contract with Customer [Abstract] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Performance obligations expected to be satisfied Revenue, Remaining Performance Obligation Performance obligations expected to be satisfied, expected timing Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period1 Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Sales revenue Sales Revenue, Net [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Legacy Legacy [Member] Legacy [Member] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Management of operations Management Of Operations [Member] Management Of Operations [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Number of reportable segments Number of Reportable Segments Number of retail vision centers Number of Stores Net revenue Revenue from Contract with Customer, Excluding Assessed Tax Concentration risk (percent) Concentration Risk, Percentage Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Stock Incentive Plan Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Accounts Receivable, Net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Schedule of Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Schedule of Other Payables and Accrued Expenses Other Current Liabilities [Table Text Block] Schedule of Other Non-current Liabilities Other Noncurrent Liabilities [Table Text Block] Fair Value Disclosures [Abstract] Derivative [Table] Derivative [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest Rate Swap Interest Rate Swap [Member] Interest Rate Swap One Interest Rate Swap One [Member] Interest Rate Swap One [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument 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 [Line Items] Derivative [Line Items] Number of interest rate swap agreements Derivative, Number of Instruments Held Notional amount Derivative Liability, Notional Amount Estimated reclassification from AOCL to earnings in next 12 months Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Accounting Policies [Abstract] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Eyecare Club Memberships Eyecare Club Memberships [Member] Eyecare Club Memberships [Member] 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] Impact of Adoption 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] ASU No. 2014-09 Accounting Standards Update 2014-09 [Member] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Decrease in deferred revenue, current Contract with Customer, Liability, Current Decrease in deferred revenue, noncurrent Contract with Customer, Liability, Noncurrent Increase in deferred income taxes, net Deferred Income Tax Liabilities, Net Increase in retained earnings Retained Earnings (Accumulated Deficit) Percentage of consolidated net revenue Revenue From Contract With Customer, Component Of Total Revenue, Percentage Revenue From Contract With Customer, Component Of Total Revenue, Percentage Schedule of Stock Option Activity Share-based Compensation, Stock Options, Activity [Table Text Block] Details of Certain Balance Sheet Accounts Supplemental Balance Sheet Disclosures [Text Block] Statement of Financial Position [Abstract] Statement [Table] Statement [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] Trademarks and trade names Trademarks and Trade Names [Member] Other intangible assets, net Other Intangible Assets [Member] Statement [Line Items] Statement [Line Items] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net Accounts Receivable, Net, Current Inventories Inventory, Net Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Other assets: Assets, Noncurrent [Abstract] Goodwill Goodwill Intangible assets Finite-Lived Intangible Assets, Net Other assets Other Assets, Noncurrent Total non-current assets Assets, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Other payables and accrued expenses Accrued Liabilities, Current Unearned revenue Contract with Customer, Customer Deposits, Current Contract with Customer, Customer Deposits, Current Deferred revenue Current maturities of long-term debt Long-term Debt and Capital Lease Obligations, Current Total current liabilities Liabilities, Current Long-term debt, less current portion and debt discount Long-term Debt and Capital Lease Obligations Other non-current liabilities: Liabilities, Other than Long-term Debt, Noncurrent [Abstract] Deferred revenue Other liabilities Other Liabilities, Noncurrent Deferred income taxes, net Total other non-current liabilities Liabilities, Other than Long-term Debt, Noncurrent Commitments and contingencies Commitments and Contingencies Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock, $0.01 par value; 200,000 shares authorized; 77,136 and 74,654 shares issued as of September 29, 2018 and December 30, 2017, respectively; 77,082 and 74,654 shares outstanding as of September 29, 2018 and December 30, 2017, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Treasury stock, at cost; 54 and 28 shares as of September 29, 2018 and December 30, 2017, respectively Treasury Stock, Value Total stockholders’ equity Total liabilities and stockholders’ equity Liabilities and Equity Description of Business and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Number of retail optical locations Number of store brands Number Of Store Brands Number Of Store Brands Accumulated Other Comprehensive Loss Stockholders' Equity Note Disclosure [Text Block] 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 and building Land and Building [Member] Equipment Equipment [Member] Furniture and fixtures Furniture and Fixtures [Member] Leasehold improvements Leasehold Improvements [Member] Construction in progress Construction in Progress [Member] Property under capital leases Assets Held under Capital Leases [Member] Property and equipment, net: Property, Plant and Equipment [Line Items] Property and equipment, gross Property, Plant and Equipment, Gross Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property and equipment, net Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Schedule of Fair Value of Cash Flow Hedge Derivative Contracts Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Carrying amount of impaired long-lived assets held and used Impaired Long-Lived Assets Held And Used, Carrying Value of Asset The carrying amount of the impaired asset held and used, prior to impairment. Impairment charge on long-lived assets held and used Impairment of Long-Lived Assets Held-for-use Estimated fair value of impaired long-lived assets held and used Impaired Long-Lived Assets Held And Used, Estimated Fair Value of Asset The estimated fair value of impaired asset held and used. Earnings Per Share [Abstract] Net income Net Income (Loss) Attributable to Parent Weighted average shares outstanding for basic EPS Weighted Average Number of Shares Outstanding, Basic Effect of dilutive securities: Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Stock options Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Restricted stock Incremental Common Shares Attributable to Dilutive Effect of Vesting of Restricted Stock Incremental Common Shares Attributable to Dilutive Effect of Vesting of Restricted Stock Weighted average shares outstanding for diluted EPS Weighted Average Number of Shares Outstanding, Diluted Basic EPS (in usd per share) Earnings Per Share, Basic Diluted EPS (in usd per share) Earnings Per Share, Diluted Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock Options Employee Stock Option [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Anti-dilutive options outstanding excluded from EPS Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Owned & Host Owned And Host Store Brands [Member] Owned And Host Store Brands [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] General payment terms for accounts on health care plans and programs (in days) Payment Terms For Health Care Plans And Programs Accounts Payment Terms For Health Care Plans And Programs Accounts Time frame for majority of payments on health care plans and programs accounts (in days) Payment Terms For Health Care Plans And Programs Accounts, Majority Of Payments Received Within Payment Terms For Health Care Plans And Programs Accounts, Majority Of Payments Received Within Extended warranty plan, term (in years) Extended Warranty Plan, Duration Extended Warranty Plan, Duration Eyecare club membership, term (in years) Eye-Care Club Membership, Duration Eye-Care Club Membership, Duration Bad debt expense Provision for Doubtful Accounts Unearned revenue, estimated delivery time for period end calculation (in days) Unearned Revenue, Delivery Time For Period End Calculation Unearned Revenue, Delivery Time For Period End Calculation Deferred revenue Contract with Customer, Liability Previously deferred revenue recognized Contract with Customer, Liability, Revenue Recognized Related Party Transactions [Abstract] Schedule of Related Party Agreements with Equity Sponsors Schedule of Related Party Transactions [Table Text Block] Schedule of Disaggregation of Revenues Disaggregation of Revenue [Table Text Block] Schedule of Impact of Adoption of New Accounting Pronouncement Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Fair value of derivative liabilities, current Derivative Liability, Current Fair value of derivative liabilities, noncurrent Derivative Liability, Noncurrent Hedge position in AOCL, net of tax Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Stranded tax benefit in AOCL Tax Cuts and Jobs Act of 2017, Tax Benefit Stranded In Accumulated Other Comprehensive Income Tax Cuts and Jobs Act of 2017, Tax Benefit Stranded In Accumulated Other Comprehensive Income Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Fair Value Measurements of Financial Assets and Liabilities Derivatives and Fair Value [Text Block] Other non-current liabilities: Other Liabilities Disclosure [Abstract] Fair value of derivative liabilities Tenant improvements Incentive from Lessor Deferred rental expenses Deferred Rent Credit, Noncurrent Self-insurance reserves Self Insurance Reserve, Noncurrent Other Other Sundry Liabilities, Noncurrent Total other non-current liabilities Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] KKR Sponsor Majority Shareholder [Member] Berkshire Partners LLC Principal Owner [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Fees paid to equity sponsors Related Party Transaction, Expenses from Transactions with Related Party Sponsor fees presented in debt issuance costs Debt Related Commitment Fees and Debt Issuance Costs Without ASC 606 Adoption Calculated under Revenue Guidance in Effect before Topic 606 [Member] Net sales of services and plans Services And Plans [Member] Services And Plans [Member] Income from operations Operating Income (Loss) Earnings before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax (benefit) provision Income Tax Expense (Benefit) Earnings per share: Basic (in usd per share) Diluted (in usd per share) Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Common stock, authorized (shares) Common Stock, Shares Authorized Common stock, issued (shares) Common Stock, Shares, Issued Common stock, outstanding (shares) Common Stock, Shares, Outstanding Treasury stock (shares) Treasury Stock, Shares Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Trade receivables Trade Accounts Receivable [Member] Credit card receivables Credit Card Receivable [Member] Tenant improvement allowances receivable Tenant Improvement Allowance Receivable [Member] Tenant Improvement Allowance Receivable [Member] Other receivables Other Receivables [Member] Other Receivables [Member] Accounts receivable, net: Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts receivable, gross Accounts Receivable, Gross, Current Allowance for uncollectible accounts Allowance for Doubtful Accounts Receivable, Current Accounts receivable, net of allowances Revenue From Contracts With Customers Revenue from Contract with Customer [Text Block] Schedule of Financial Data by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation Amortization of loan costs Amortization of Debt Discount (Premium) Asset impairment Asset Impairment Charges Deferred income tax (benefit) expense Deferred Income Tax Expense (Benefit) Non-cash stock option compensation Share-based Compensation Non-cash inventory adjustments Inventory Write-down Debt issuance costs Amortization of Debt Issuance Costs Other Other Noncash Income (Expense) Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Other assets Increase (Decrease) in Other Operating Assets Accounts payable Increase (Decrease) in Accounts Payable Deferred revenue Increase (Decrease) In Contract With Customer, Liability Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable. Other liabilities Increase (Decrease) in Other Operating Liabilities 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 Purchase of investments Payments to Acquire Investments Other Payments for (Proceeds from) Other Investing Activities Net cash used for 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 issuance of long-term debt Proceeds from Issuance of Long-term Debt Proceeds from exercise of stock options Proceeds from Issuance of Common Stock Proceeds from exercise of stock options Proceeds from Stock Options Exercised Principal payments on long-term debt Repayments of Long-term Debt Purchase of treasury stock Payments for Repurchase of Common Stock Payments on capital lease obligations Repayments of Long-term Capital Lease Obligations Debt issuance costs Payments of Debt Issuance Costs Dividend to stockholders Payments of Dividends Net cash provided by (used for) financing activities Net Cash Provided by (Used in) Financing Activities Net change in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Cash, cash equivalents and restricted cash, beginning of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash, end of period Reconciliation of Cash, Cash Equivalents, and Restricted Cash: Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Restricted cash included in other assets Restricted Cash and Cash Equivalents Total cash, cash equivalents and restricted cash Loss Contingencies [Table] Loss Contingencies [Table] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] 1-800 Contacts Matter One Eight Hundred Contacts Matter [Member] One Eight Hundred Contacts Matter [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Amount of litigation settlement Litigation Settlement, Amount Awarded to Other Party Litigation settlement Gain (Loss) Related to Litigation Settlement Percent of settlement award deposited in escrow account (percent) Litigation Settlement, Percent Of Settlement To Be Paid Deposited In Escrow Account Litigation Settlement, Percent Of Settlement To Be Paid Deposited In Escrow Account Amount of settlement deposited in escrow account Litigation Settlement, Amount Of Settlement To Be Paid Deposited In Escrow Account Litigation Settlement, Amount Of Settlement To Be Paid Deposited In Escrow Account Other payables and accrued expenses: Accounts Payable and Accrued Liabilities, Current [Abstract] Employee compensation and benefits Employee-related Liabilities, Current Advertising Accrued Advertising, Current Self-insurance reserves Self Insurance Reserve, Current Reserves for customer returns and remakes Reserves For Customer Returns And Remakes, Current Reserves For Customer Returns And Remakes, Current Capital expenditures Capital Expenditures Payable, Current Capital Expenditures Payable, Current Legacy management and services agreement Accrued Management And Services Agreement, Current Accrued Management And Services Agreement, Current Fair value of derivative liabilities Sales and use taxes Sales and Excise Tax Payable, Current Supplies and other store support expenses Accrued Supplies And Store Support, Current Accrued Supplies And Store Support, Current Litigation settlements Settlement Liabilities, Current Other Other Accrued Liabilities, Current Total other payables and accrued expenses Earnings Per Share Earnings Per Share [Text Block] Income Statement [Abstract] Products Product Sales [Member] Product Sales [Member] Services and plans Revenue: Revenue, Net [Abstract] Total net revenue Costs applicable to revenue (exclusive of depreciation and amortization): Cost of Goods and Services Sold [Abstract] Total costs applicable to revenue Cost of Goods and Services Sold Operating expenses: Operating Expenses [Abstract] Selling, general and administrative expenses Selling, General and Administrative Expense Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Other expense, net Other Cost and Expense, Operating Total operating expenses Operating Expenses (Loss) income from operations Interest expense, net Interest Expense, Debt (Loss) earnings before income taxes Net income Weighted average shares outstanding: Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Basic (shares) Diluted (shares) Comprehensive income: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Unrealized gain on hedge instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. Tax provision of unrealized gain on hedge instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent 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] Service-Based and Performance-Based Stock Option, Service-Based And Performance-Based [Member] Stock Option, Service-Based And Performance-Based [Member] Performance-Based Stock Option, Performance-Based [Member] Stock Option, Performance-Based [Member] MOIC Performance-Based Stock Option, MOIC Performance-Based [Member] Stock Option, MOIC Performance-Based [Member] Service-Based Stock Option, Service-Based [Member] Stock Option, Service-Based [Member] Restricted Stock Units Restricted Stock Units (RSUs) [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2014 Stock Incentive Plan Two Thousand Fourteen Stock Incentive Plan [Member] Two Thousand Fourteen Stock Incentive Plan [Member] 2017 Omnibus Incentive Plan Two Thousand Seventeen Omnibus Incentive Plan [Member] Two Thousand Seventeen Omnibus Incentive Plan [Member] Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] Underwritten Public Offering Secondary Offering [Member] Secondary Offering [Member] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Executive Officer Executive Officer [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Aggregate number of shares reserved under stock incentive plan (shares) Common Stock, Capital Shares Reserved for Future Issuance Number of shares available for future grants (shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Exercise price of options exercised (in usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Tax benefit from option exercises Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options Options granted (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Percentage of performance-based grant that vested due to targets met (percent) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Percent Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Percent Number of shares sold (shares) Sale of Stock, Number of Shares Issued in Transaction Non-cash stock-based compensation expense Long-term incentive expense Long-Term Incentive Expense Long-Term Incentive Expense Offering-related expenses Stock Offering Expense Stock Offering Expense Excess payroll taxes associated with exercises of stock options Share-based Compensation Arrangement by Share-based Payment Award, Options, Excess Payroll Taxes Share-based Compensation Arrangement by Share-based Payment Award, Options, Excess Payroll Taxes Number of restricted stock unit awards issued and outstanding (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Number of option awards issued and outstanding (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 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] Revenues recognized at a point in time Transferred at Point in Time [Member] Revenues recognized over time Transferred over Time [Member] Related Party Transactions Related Party Transactions Disclosure [Text Block] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] October 2018 Joinder October 2018 Joinder And Amendment Agreement [Member] October 2018 Joinder And Amendment Agreement [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Term A Loans Loans Payable [Member] Debt Instrument, Variable Rate Basis [Axis] Debt Instrument, Variable Rate Basis [Axis] Debt Instrument, Variable Rate Basis [Axis] Debt Instrument, Variable Rate Basis [Domain] Debt Instrument, Variable Rate Basis [Domain] [Domain] for Debt Instrument, Variable Rate Basis [Axis] Total Leverage Ratio Less Than 2.00 Debt Instrument, Variable Rate Metric, Tranche One [Member] Debt Instrument, Variable Rate Metric, Tranche One [Member] Total Leverage Ratio Between 2.00 and 2.50 Debt Instrument, Variable Rate Metric, Tranche Two [Member] Debt Instrument, Variable Rate Metric, Tranche Two [Member] Total Leverage Ratio Greater Than 2.50 Debt Instrument, Variable Rate Metric, Tranche Three [Member] Debt Instrument, Variable Rate Metric, Tranche Three [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] ABR Base Rate [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Aggregate principal amount Debt Instrument, Face Amount Applicable margin (percent) Debt Instrument, Basis Spread on Variable Rate Total leverage ratio Debt Instrument, Leverage Ratio Debt Instrument, Leverage Ratio Amortization per annum, year one through year three (percent) Debt Instrument, Amortization Per Annum, Year One Through Year Three, Percent Debt Instrument, Amortization Per Annum, Year One Through Year Three, Percent Amortization per annum, year four and thereafter (percent) Debt Instrument, Amortization Per Annum, Year Four And Thereafter, Percent Debt Instrument, Amortization Per Annum, Year Four And Thereafter, Percent Maximum allowable quarter end Consolidated Total Debt To Consolidated EBITDA Ratio Debt Agreement, Consolidated Total Debt To Consolidated EBITDA Ratio, Quarter End, Maximum Debt Agreement, Consolidated Total Debt To Consolidated EBITDA Ratio, Quarter End, Maximum Maximum allowable quarter end Consolidated Interest Coverage Ratio Debt Agreement, Consolidated Interest Coverage Ratio, Quarter End, Maximum Debt Agreement, Consolidated Interest Coverage Ratio, Quarter End, Maximum Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Fiscal Year Fiscal Period, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Asset Impairment Property, Plant and Equipment, Impairment [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Segment Reporting Segment Reporting Disclosure [Text Block] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments Operating Segments [Member] Reconciling Items Segment Reconciling Items [Member] Corporate/Other Corporate and Other [Member] SG&A EBITDA Earnings Before Interest, Taxes, Depreciation, And Amortization Earnings (Loss) Before Interest, Taxes, Depreciation, And Amortization Deferred revenue, current Total current liabilities Deferred revenue, noncurrent Total other non-current liabilities Total stockholders’ equity Schedule of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Equity Method Investee Equity Method Investee [Member] Interest in investee's net losses Income (Loss) from Equity Method Investments Equity method investment Equity Method Investments Licensing fees in SG&A Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party Loan receivable Notes Receivable, Related Parties, Noncurrent Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Term Loan Capital Lease Obligations Capital Lease Obligations [Member] 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] Estimated Fair Value Estimate of Fair Value Measurement [Member] Carrying Value Reported Value Measurement [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 2 Fair Value, Inputs, Level 2 [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Debt instruments Debt Instrument, Fair Value Disclosure Rollover Stock Option, Vested Rollover [Member] Stock Option, Vested Rollover [Member] Options issued and outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning balance (shares) Exercised (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Forfeited (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Outstanding, ending balance (shares) Options vested and exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested And Exercisable, Number of Shares [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested And Exercisable, Number of Shares [Roll Forward] Exercisable, beginning balance (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Vested (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares Forfeited (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Forfeitures in Period The number of shares under vested and exercisable options 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 plan. Exercisable, ending balance (shares) Effective income tax rate (percent) Effective Income Tax Rate Reconciliation, Percent Tax benefit associated primarily with exercise of stock options Schedule of Reconciliation of Basic and Diluted EPS Calculations Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Inventories: Inventory, Net, Combining Work in Process and Raw Materials Alternative [Abstract] Raw materials and work in process Inventory, Raw Materials and Supplies, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Inventories