Commitments and Contingencies Disclosure [Abstract] Components of Lease Lease, Cost [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases Lessee, Operating Lease, Liability, Maturity [Table Text Block] Schedule of Future Minimum Lease Payments for Operating Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] GOODWILL AND INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] Product Warranties Disclosures [Abstract] Summary of Warranty Activities Schedule of Product Warranty Liability [Table Text Block] Restructuring and Related Activities [Abstract] 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] Redundancy and employee severance and benefit arrangements Employee Severance [Member] Lease loss reserves Lease Loss Reserves And Contract Termination Costs [Member] Lease Loss Reserves And Contract Termination Costs [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring charges Restructuring Charges Lease loss reserves Restructuring Reserve, Accrual Adjustment Restructuring and Related Costs Restructuring and Related Costs [Table Text Block] Schedule of Restructuring Reserve by Type of Cost Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Debt Disclosure [Abstract] 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] Convertible Notes Convertible Notes Payable [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Convertible Senior Notes Due 2023 Convertible Senior Notes Due 2023 [Member] Convertible Senior Notes Due 2023 [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Contractual interest expense Interest Expense, Debt, Excluding Amortization Amortization of debt issuance costs Amortization of Debt Issuance Costs Total interest costs recognized Interest Expense, Debt Related Party Transactions [Abstract] Related Party Related Party Transactions Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Recurring Fair Value, Recurring [Member] 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] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Total warranty obligations measured at fair value Warranty, Rights and Obligations, Fair Value Option [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] Warranty obligations, current Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Current Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Current Warranty obligations, non-current Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Non-current Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Non-current Total warranty obligations measured at fair value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 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] SunPower’s SunPower’s [Member] SunPower’s [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Common stock held by related party (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Revenue from related parties Revenue from Related Parties Accounts receivable, related parties Accounts Receivable, Related Parties Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock and Additional Paid-In Capital Common Stock Including Additional Paid in Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance, beginning of period Stockholders' Equity Attributable to Parent Cumulative-effect adjustment and other Cumulative Effect on Retained Earnings, Net of Tax Common stock issued under equity incentive and stock purchase plans, net Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Conversion of convertible notes due 2023, net Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature Equity component of convertible notes due 2024, net Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments Cost of convertible notes hedge related to the convertible notes due 2024 Adjustments to Additional Paid in Capital, Convertible Bond Hedge Adjustments to Additional Paid in Capital, Convertible Bond Hedge Sale of warrants related to the convertible notes due 2024 Adjustments to Additional Paid in Capital, Warrant Issued Issuance of common stock, net Stock Issued During Period, Value, New Issues Stock-based compensation expense and other APIC, Share-based Payment Arrangement, Increase for Cost Recognition Net income (loss) Net Income (Loss) Attributable to Parent Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Balance, end of period Organization, Consolidation and Presentation of Financial Statements [Abstract] Other Financial Information Supplemental Balance Sheet Disclosures [Text Block] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Cover page. Document Type Document Type Document Quarterly Report Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current 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 Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Central Index Key Entity Central Index Key Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Current Fiscal Year End Date Entity Bankruptcy Proceedings, Reporting Current Entity Bankruptcy Proceedings, Reporting Current Earnings Per Share [Abstract] NET INCOME (LOSS) PER SHARE Earnings Per Share [Text Block] Share-based Payment Arrangement [Abstract] Number of Shares Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Outstanding, ending balance (in shares) Shares outstanding, vested and expected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Shares outstanding, exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted- Average Exercise Price per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding, beginning balance (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised (in usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Canceled (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Outstanding, ending balance (in usd per share) Weighted-average exercise price, vested and expected (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Weighted-average exercise price, exercisable (in usd per share) Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Weighted-Average Remaining Contractual Term Weighted-Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Weighted-Average Remaining Contractual Term (in years) Outstanding Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Remaining Contractual Term Vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Share-based Payment Arrangement, Additional Disclosure [Abstract] Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Share price (in USD per share) Share Price 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] Award Type [Domain] Award Type [Domain] Stock options and RSUs and PSUs Employee Stock Options and Restricted Stock Units [Member] Employee Stock Options and Restricted Stock Units [Member] Employee stock purchase plan Employee Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Total stock-based compensation expense Share-based Payment Arrangement, Expense Secured Debt Secured Debt [Member] Financing Receivable Financing Receivable [Member] Convertible Senior Note Due 2024 Convertible Senior Note Due 2024 [Member] Convertible Senior Note Due 2024 [Member] Term Loan Agreement, July 2016 Term Loan Agreement, July 2016 [Member] Term Loan Agreement, July 2016 [Member] Financing Receivable Recorded as Debt Financing Receivable Recorded As Debt [Member] Financing Receivable Recorded As Debt [Member] Long-term debt, gross Long-term Debt, Gross Less unamortized discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Less: unamortized issuance costs Unamortized Debt Issuance Expense Total carrying amount of debt Long-term Debt Debt, current Long-term Debt, Current Maturities Long-term debt Long-term Debt, Excluding Current Maturities Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [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] Patents and licensed technology Patents And Licensed Technology [Member] Patents And Licensed Technology [Member] Developed technology Intellectual Property [Member] Customer relationship Customer Relationships [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Goodwill, Gross Goodwill, Gross Goodwill, Net Goodwill Intangible Assets, Net (Excluding Goodwill) [Abstract] Intangible Assets, Net (Excluding Goodwill) [Abstract] Other indefinite-lived intangibles, Gross Indefinite-lived Intangible Assets (Excluding Goodwill) Intangible assets with finite lives: Finite-Lived Intangible Assets, Net [Abstract] Gross Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Net Finite-Lived Intangible Assets, Net Salaries, commissions, incentive compensation and benefits Employee-related Liabilities, Current Customer rebates and sales incentives Accrued Marketing Costs, Current Freight Accrued Freight Costs Accrued Freight Costs Other Other Accrued Liabilities, Current Total accrued liabilities Accrued Liabilities, Current Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Measurement Input Type [Axis] Measurement Input Type [Axis] Measurement Input Type [Domain] Measurement Input Type [Domain] Profit element and risk premium Measurement Input, Profit Element And Risk Premium [Member] Measurement Input, Profit Element And Risk Premium [Member] Credit-adjusted risk-free rate Measurement Input, Entity Credit Risk [Member] Eligible Item or Group for Fair Value Option [Axis] Financial Instrument [Axis] Fair Value, Option, Eligible Item or Group [Domain] Financial Instruments [Domain] Warranty obligations for microinverters sold since January 1, 2014 Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Warranty obligations for microinverters sold since January 1, 2014 Product Warranty Obligations, Measurement Input Product Warranty Obligations, Measurement Input Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Tennenbaum Capital Partners, LLC Tennenbaum Capital Partners, LLC [Member] Tennenbaum Capital Partners, LLC [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Amended Tennenbaum Capital Partners LLC Agreement Amended Tennenbaum Capital Partners LLC Agreement [Member] Amended Tennenbaum Capital Partners LLC Agreement [Member] Debt instrument face amount Debt Instrument, Face Amount Repayments of debt Repayments of Debt Share-based Payment Arrangement, Option, Exercise Price Range [Table] Share-based Payment Arrangement, Option, Exercise Price Range [Table] Exercise Price Range [Axis] Exercise Price Range [Axis] Exercise Price Range [Domain] Exercise Price Range [Domain] $0.64 —– $1.14 Range One [Member] Range One [Member] $1.29 —– $1.29 Range Two [Member] Range Two [Member] $1.31 —– $1.31 Range Three [Member] Range Three [Member] $1.37 —– $7.50 Range Four [Member] Range Four [Member] $7.68 —– $14.58 Range Five [Member] Range Five [Member] Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] Exercise price range, lower limit (usd per share) Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit Exercise price range, upper limit (usd per share) Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit Options outstanding, Number of Shares (shares) Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding Options Outstanding - Weighted- Average Remaining Life Options Outstanding - Weighted- Average Exercise Price (usd per share) Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price Options Exercisable - Number of Shares Exercisable (shares) Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable Options Exercisable - Weighted-average Exercise Price (usd per share) COMMITMENTS AND CONTINGENT LIABILITIES Commitments and Contingencies Disclosure [Text Block] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Period One Debt Instrument, Redemption, Period One [Member] Period Two Debt Instrument, Redemption, Period Two [Member] Interest rate Debt Instrument, Interest Rate, Stated Percentage Conversion ratio Debt Instrument, Convertible, Conversion Ratio Principal amount multiples Debt Instrument, Convertible, Principal Amount Multiples Debt Instrument, Convertible, Principal Amount Multiples Debt conversion price (in USD per share) Debt Instrument, Convertible, Conversion Price Proceeds from convertible debt Proceeds from Convertible Debt Number of threshold trading days Debt Instrument, Convertible, Threshold Trading Days Number of consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Stock trigger price (in USD per share) Debt Instrument, Convertible, Stock Price Trigger Threshold percentage Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Measurement period threshold percentage Debt Instrument, Convertible, Measurement Period Percentage Of Stock Price Trigger Debt Instrument, Convertible, Measurement Period Percentage Of Stock Price Trigger Convertible note, liability component Convertible Notes Payable Effective percentage rate Debt Instrument, Interest Rate, Effective Percentage Convertible note, equity component Debt Instrument, Convertible, Carrying Amount of Equity Component Debt issuance costs Debt Issuance Costs, Gross Unamortized debt issuance costs Debt Issuance Costs, Net Debt issuance costs, allocated to capital Debt Issuance Costs, Allocated to Capital Debt Issuance Costs, Allocated to Capital Unamortized discount Debt Instrument, Unamortized Discount Remaining discount amortization period Debt Instrument, Convertible, Remaining Discount Amortization Period Conversion shares (in shares) Debt Instrument, Convertible, Conversion Shares Debt Instrument, Convertible, Conversion Shares Payment for bonds hedge Payments for Hedge, Financing Activities Warrants sold (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Warrants issued, strike price (in USD per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Proceeds from sale of warrants Proceeds from Issuance of Warrants STOCK-BASED COMPENSATION Share-based Payment Arrangement [Text Block] Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 (remaining six months) Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total lease payments Lessee, Operating Lease, Liability, Payments, Due Less: imputed lease interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Total lease liabilities Operating Lease, Liability DEBT Long-term Debt [Text Block] Schedule of Debt Schedule of Debt [Table Text Block] Numerator: Net Income (Loss) Attributable to Parent [Abstract] Net income (loss) Notes due 2023 interest and financing costs, net Interest on Convertible Debt, Net of Tax Adjusted net income (loss) Net Income (Loss) Attributable to Parent, Diluted Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Employee stock-based awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Notes due 2023 (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Weighted average common shares outstanding for diluted calculation (in shares) Weighted Average Number of Shares Outstanding, Diluted Net income (loss) per share, basic (in USD per share) Income (Loss) from Continuing Operations, Per Basic Share Net income (loss) per share, diluted (in USD per share) Income (Loss) from Continuing Operations, Per Diluted Share Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [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 and amortization Depreciation, Depletion and Amortization Provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Non-cash interest expense Amortization of Debt Issuance Costs and Discounts Financing fees on extinguishment of debt Gain (Loss) on Extinguishment of Debt Fees paid for repurchase and exchange of convertible notes due 2023 Gain (Loss) on Repurchase of Debt Instrument Stock-based compensation Share-based Payment Arrangement, Noncash Expense Changes in operating assets and liabilities: Increase (Decrease) in Operating Assets [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventory Increase (Decrease) in Inventories Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable, accrued and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Warranty obligations Standard and Extended Product Warranty Accrual, Period Increase (Decrease) Deferred revenues Increase (Decrease) in Contract with Customer, Liability 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] Purchases 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] Issuance of convertible notes due 2024, net of issuance costs Proceeds from Convertible Debt, Net of Issuance Costs Proceeds from Convertible Debt, Net of Issuance Costs Purchase of convertible note hedges Sale of warrants Proceeds from Warrant Exercises Fees paid for repurchase and exchange of convertible notes due 2023 Repayments of Convertible Debt Principal payments and financing fees on debt Repayments of Long-term Debt Proceeds from issuance of common stock, net of issuance costs Proceeds from Issuance of Common Stock Proceeds from debt, net of issuance costs Proceeds from Issuance of Long-term Debt Proceeds from issuance of common stock under employee stock plans, net Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised Net cash 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, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Net increase in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents—Beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents—End of period Supplemental disclosures of non-cash investing and financing activities: Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract] Purchases of fixed assets included in accounts payable Capital Expenditures Incurred but Not yet Paid Accrued interest payable unpaid upon exchange of convertible notes due 2023 Accrued Interest Payable Upon Exchange Of Convertible Notes Accrued Interest Payable Upon Exchange Of Convertible Notes Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Developed technology, and patents and licensed technology Developed Technology Rights [Member] Customer relationships Amortization of intangible assets Amortization of Intangible Assets Amortization period for acquired intangible assets Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Agreement for exclusive supplier rights, period Business Combination, Supply Agreement, Period Business Combination, Supply Agreement, Period Revenue from Contract with Customer [Abstract] Contract Assets Change In Contract With Customer, Asset [Roll Forward] Change In Contract With Customer, Asset [Roll Forward] Balance, beginning of period Contract with Customer, Asset, after Allowance for Credit Loss Amount recognized Contract with Customer, Asset, Reclassified to Receivable Increase Contract With Customer, Asset, New Contract Additions Contract With Customer, Asset, New Contract Additions Balance, end of period Contract Liabilities Change In Contract With Customer, Liability [Roll Forward] Change In Contract With Customer, Liability [Roll Forward] Balance, beginning of period Contract with Customer, Liability Revenue recognized Contract with Customer, Liability, Revenue Recognized Increase due to billings Contract With Customer, Liability, Increase From Cash Receipts Contract With Customer, Liability, Increase From Cash Receipts Balance, end of period Summary of Revenue Disaggregation Disaggregation of Revenue [Table Text Block] Summary of Contract Assets and Contract Liabilities, and Changes in Balances from Contracts with Customers Contract with Customer, Asset and Liability [Table Text Block] Summary of Estimated Revenue Expected to be Recognized in Future Periods Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Operating cash flows from operating leases Operating Lease, Payments Lease liabilities arising from obtaining right-of-use assets Right-of-Use Asset Obtained in Exchange for Operating Lease Liability 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 Sublease income to be recognized in the future under noncancelable subleases Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals Net operating lease minimum payments Operating Leases Future Minimum Payments Due Net Of Sublease Rentals Operating Leases Future Minimum Payments Due Net Of Sublease Rentals Operating lease liabilities, current (Accrued liabilities) Operating Lease, Liability, Current Operating lease liabilities, noncurrent (Other liabilities) Operating Lease, Liability, Noncurrent Total operating lease liabilities Raw materials Inventory, Raw Materials, Gross Finished goods Inventory, Finished Goods, Gross Total inventory Inventory, Net Award Type [Domain] Performance Shares Performance Shares [Member] Number of Shares Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Outstanding, beginning balance (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 Canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Outstanding, ending balance (in shares) Weighted Average Fair Value per Share at Grant Date Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Outstanding, beginning balance (in usd 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 usd 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 usd 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 Canceled (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Outstanding, ending balance (in usd per share) Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested Income Tax Disclosure [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Income Statement Location [Axis] Income Statement Location [Axis] Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain] Income Statement Location [Domain] Cost of revenues Cost of Sales [Member] Research and development Research and Development Expense [Member] Sales and marketing Selling and Marketing Expense [Member] General and administrative General and Administrative Expense [Member] Restructuring Restructuring Charges [Member] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Total unrecognized compensation cost Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Weighted-average recognition period for unrecognized compensation cost Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Total estimated revenue expected to be recognized in future periods Revenue, Remaining Performance Obligation, Amount 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] Total estimated revenue expected to be recognized in future periods, expected timing Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Restatement [Axis] Restatement [Axis] Restatement [Domain] Restatement [Domain] Reclassification Adjustment Restatement Adjustment [Member] Debt converted Debt Conversion, Original Debt, Amount Conversion shares (in shares) Debt Conversion, Converted Instrument, Shares Issued Fees paid for repurchase and exchange of convertible notes Redemption price percentage Debt Instrument, Redemption Price, Percentage Deferred issuance costs Accrued interest Interest Payable Contract asset impairment charges Capitalized Contract Cost, Impairment Loss Operating lease costs Operating Lease, Cost 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] Employee stock-based awards Share-based Payment Arrangement [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at beginning of period Accruals for warranties issued during period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Warranties Issued Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Warranties Issued Changes in estimates Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability, Change in Estimate Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability, Change in Estimate Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Increase due to accretion expense Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Other Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Increase (Decrease) in Other Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Increase (Decrease) in Other Balance at end of period REVENUE RECOGNITION Revenue from Contract with Customer [Text Block] Receivables Accounts Receivable, after Allowance for Credit Loss, Current Short-term contract assets (Prepaid expenses and other assets) Contract with Customer, Asset, Net, Current Long-term contract assets (Other assets) Contract with Customer, Asset, Net, Noncurrent Short-term contract liabilities (Deferred revenues) Contract with Customer, Liability, Current Long-term contract liabilities (Deferred revenues) Contract with Customer, Liability, Noncurrent Statement of Financial Position [Abstract] Preferred stock, par value (in usd per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Changes in the Company's product warranty liability Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward] Warranty obligations, beginning of period Standard and Extended Product Warranty Accrual Accruals for warranties issued during period Standard Product Warranty Accrual, Increase for Warranties Issued Changes in estimates Standard and Extended Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties Settlements Standard Product Warranty Accrual, Decrease for Payments Increase due to accretion expense Product Warranty Accrual, Accretion Expense Product Warranty Accrual, Accretion Expense Other Standard And Extended Product Warranty Accrual, Other Period Increase (Decrease) Standard And Extended Product Warranty Accrual, Other Period Increase (Decrease) Warranty obligations, end of period Less: current portion Product Warranty Accrual, Current Noncurrent Product Warranty Accrual, Noncurrent Contractual interest expense Amortization of debt discount Amortization of Debt Discount (Premium) Total interest cost recognized Schedule of Computation of Basic and Diluted Net Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Potentially Dilutive Securities Excluded from the Computation of Diluted Net Loss Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Goodwill and Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] Schedule of Amortization Expense Finite-lived Intangible Assets Amortization Expense [Table Text Block] Schedule of Accounts Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Inventory Schedule of Inventory, Current [Table Text Block] Schedule of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net Inventory Prepaid expenses and other assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Operating lease, right of use asset Operating Lease, Right-of-Use Asset Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Goodwill Other 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 liabilities Deferred revenues, current Warranty obligations, current Debt, current Total current liabilities Liabilities, Current Long-term liabilities: Liabilities, Noncurrent [Abstract] Deferred revenues, noncurrent Warranty obligations, noncurrent Other liabilities Other Liabilities, Noncurrent Debt, noncurrent Total liabilities Liabilities Commitments and contingent liabilities (Note 9) Commitments and Contingencies Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.00001 par value, 10,000 shares authorized; none issued and outstanding Preferred Stock, Value, Issued Common stock, $0.00001 par value, 150,000 shares and 150,000 shares authorized; and 121,950 shares and 107,035 shares issued and outstanding at June 30, 2019 and December 31, 2018, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders’ equity Total liabilities and stockholders’ equity Liabilities and Equity Term of lease contract, maximum renewal term Lessee, Operating Lease, Renewal Term Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Accounts receivable Accounts Receivable, before Allowance for Credit Loss Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss Basis of Presentation and Consolidation Basis of Accounting, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Leases Lessee, Leases [Policy Text Block] New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Increase in liability as a result of increasing the profit element and risk premium input by 100 basis points Warranty Obligations At Fair Value, Increase In Fair Value Liability, Resulting From One Percentage Point Increase In Profit Element And Risk Premium Warranty Obligations At Fair Value, Increase In Fair Value Liability, Resulting From One Percentage Point Increase In Profit Element And Risk Premium Decrease in liability as a result of decreasing the profit element and risk premium input by 100 basis points Warranty Obligations At Fair Value, Decrease In Fair Value Liability, Resulting From One Percentage Point Decrease In Profit Element And Risk Premium Warranty Obligations At Fair Value, Decrease In Fair Value Liability, Resulting From One Percentage Point Decrease In Profit Element And Risk Premium Decrease to fair value measurement as a result of 100 basis point increase Warranty Obligations At Fair Value, Increase In Fair Value Resulting From One Percentage Point Decrease In Discount Rate Warranty Obligations At Fair Value, Increase In Fair Value Resulting From One Percentage Point Decrease In Discount Rate Increase to fair value measurement as a result of 100 basis point decrease Warranty Obligations at Fair Value, Decrease in Fair Value Resulting from One Percentage Point Increase in Discount Rate Warranty Obligations at Fair Value, Decrease in Fair Value Resulting from One Percentage Point Increase in Discount Rate WARRANTY OBLIGATIONS Product Warranty Disclosure [Text Block] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] 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] Other liabilities Accrued liabilities Other assets Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Changes in Nonfinancial Liabilities Related to Warrant Obligations Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Summary of Significant Unobservable Inputs used in the Fair Value Measurement of Liabilities Designated as Level 3 Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block] Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Restructuring Plan 2018 Restructuring Plan 2018 [Member] Restructuring Plan 2018 [Member] Restructuring Plan 2016 Restructuring Plan 2016 [Member] Restructuring Plan 2016 [Member] Employee Severance and Benefits Lease Loss Reserves and Contractual Obligations Contract Termination [Member] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Restructuring reserve, beginning Restructuring Reserve Charges Restructuring Costs and Asset Impairment Charges Cash payments Payments for Restructuring Non-cash settlement and other Restructuring Reserve, Settled without Cash Restructuring reserve, ending Restricted stock units Restricted Stock Units (RSUs) [Member] Number of shares outstanding, expected to vest (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Expected To Vest, Outstanding, Number Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Expected To Vest, Outstanding, Number Weighted-Average Fair Value per Share at Grant Date, Expected to vest (in usd per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other than Options, Expected To Vest, Outstanding, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other than Options, Expected To Vest, Outstanding, Weighted Average Exercise Price Expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Other than Options, Expected to Vest, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Other than Options, Expected to Vest, Weighted Average Remaining Contractual Term Vested Outstanding Expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected to Vest, Intrinsic Value, Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected to Vest, Intrinsic Value, Value RESTRUCTURING Restructuring and Related Activities Disclosure [Text Block] Stock options Share-based Payment Arrangement, Option [Member] The fair value of each option granted during the periods Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Weighted average grant date fair value (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value 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, Expected Volatility Rate Annual risk-free rate of return 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 Income Statement [Abstract] Net revenues Revenue from Contract with Customer, Excluding Assessed Tax Cost of revenues Cost of Revenue Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development Research and Development Expense Sales and marketing Selling and Marketing Expense General and administrative General and Administrative Expense Restructuring charges Total operating expenses Operating Expenses Income (loss) from operations Operating Income (Loss) Other expense, net Other Nonoperating Income (Expense) [Abstract] Interest income Interest Income, Deposits with Financial Institutions Interest expense Interest Expense Other expense, net Other Nonoperating Income (Expense) Total other expense, net Nonoperating Income (Expense) Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Net income (loss) Net income (loss) per share: Earnings Per Share, Basic and Diluted [Abstract] Basic (in USD per share) Diluted (in USD per share) Shares used in per share calculation: Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Summary of the Components of Total Stock-Based Compensation Expense Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Summary of Stock-Based Compensation Associated with Each Type of Award Share-based Payment Arrangement, Cost by Plan [Table Text Block] Summary of the Weighted-Average Grant Date Fair Value of Options Granted Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Summary of Stock Option Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Summary of Stock Option Outstanding Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Summary of Restricted Stock Unit Activity Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Share-based Compensation, Performance Shares Award Outstanding Activity Share-based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States UNITED STATES International International [Member] International [Member] 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] Products delivered at a point in time Transferred at Point in Time [Member] Products and services delivered over time Transferred over Time [Member] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Statement of Comprehensive Income [Abstract] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]