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Income Tax Expense (Benefit), Net Of Valuation Allowance Deferred Income Tax Expense (Benefit), Net Of Valuation Allowance Anshul Maheshwari [Member] Anshul Maheshwari Less: Unamortized debt issuance costs and lender fees Debt Issuance Costs, Net Level 2 Fair Value, Inputs, Level 2 [Member] Document Financial Statement Error Correction Document Financial Statement Error Correction [Flag] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Common stock outstanding (in shares) Stockholders' equity, beginning of period (in shares) Stockholders' equity, end of period (in shares) Common Stock, Shares, Outstanding Share-based Payment Arrangement, Option, Exercise Price Range [Table] Share-Based Payment Arrangement, Option, Exercise Price Range [Table] Accounts receivable credit losses Provision Accounts Receivable, Credit Loss Expense (Reversal) Schedule of Components of Income Tax Expense Schedule of Components of Income Tax 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vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Proceeds from the exercise of common stock options Proceeds from Stock Options Exercised City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Weighted-average remaining contractual life, options vested and expected to vest (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Accrued liabilities and other Accrued liabilities and other Accrued Liabilities, Current Loss Contingency Commitments and Contingencies, Policy [Policy Text Block] Warrants Issued 11/9/2015 Warrants Issued 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Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Final payment fee related to debt Payments Of Financing Fee, Final Payments Of Financing Fee, Final Restatement Determination Date: Restatement Determination Date [Axis] Depreciation and amortization Deferred Tax Assets, Depreciation And Amortization Deferred Tax Assets, Depreciation And Amortization Non-PEO NEO Non-PEO NEO [Member] Foreign Deferred Foreign Income Tax Expense (Benefit) Aggregate intrinsic value, options outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Issuance of common stock related to employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Operating lease right-of-use assets Deferred Tax Liabilities, Leasing Arrangements Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Name Trading Arrangement, 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