Debt Conversion, Future Undiscounted Cash Flows

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Debt Instrument, Convertible, Conversion Price, Settlement

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Debt Instrument, Covenant Terms Terms, Revenue

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Debt Instrument, Paid-in-Kind Interest Option, Term

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Debt Instrument, Paid-in-Kind Option, Increase Amount

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Debt Instrument, Payment-in-Kind, Percentage

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Debt Transfer, Amount

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Derivative Liability, Noncurrent, Original Amount

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Line of Credit Facility, Repayment Fee

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Repayments Of Long-term Debt, Interest

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Repayments Of Long-term Debt, Transaction Costs

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Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.

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Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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The price per share of the conversion feature embedded in the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

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Increase in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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Gross amount of debt extinguished.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.

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The effective interest rate at the end of the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Debt - Narrative (Details) - USD ($)							1 Months Ended					3 Months Ended	12 Months Ended
Debt - Narrative (Details) - USD ($)	Oct. 31, 2019	Sep. 18, 2019	Dec. 21, 2018	Dec. 13, 2018	Jun. 01, 2018	Apr. 27, 2018	Dec. 31, 2019	Nov. 30, 2019	Apr. 30, 2019	Jan. 31, 2019	Dec. 31, 2018	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 22, 2014	Dec. 16, 2014
Debt Instrument [Line Items]
Proceeds from revolver													$ 12,500,000	$ 15,000,000
Loss on debt restructuring													920,000	0
Derivative liability	$ 13,545,000						$ 6,776,000				$ 0		6,776,000	0
Expiration of debt													0	1,315,000
2023 Series A Unsecured Convertible Notes for Series B Senior Unsecured Convertible Notes
Debt Instrument [Line Items]
Debt issuance costs							1,400,000						1,400,000
Loss on debt restructuring													900,000
Original derivative amount, before re-measurement							13,500,000						13,500,000
Derivative liability							6,800,000						6,800,000
Gain on change in fair value of derivatives													6,800,000
Line of Credit
Debt Instrument [Line Items]
Proceeds from revolver											52,800,000
Covenant, revenue required to attain													125,000,000.0
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Face amount of the Notes							$ 25,000,000				$ 15,000,000		$ 25,000,000	$ 15,000,000
Debt issuance costs				$ 300,000
Unamortized discount				500,000
Proceeds from revolver		$ 2,500,000		15,000,000.0					$ 5,000,000.0	$ 5,000,000.0
Line of credit maximum borrowing capacity				25,000,000.0
Repayment fee								$ 100,000
Line of Credit \| Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Interest rate, effective percentage							6.20%						6.20%
Line of Credit \| Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Interest rate, effective percentage							9.10%						9.10%
Line of Credit \| Revolving Credit Facility \| LIBOR
Debt Instrument [Line Items]
Applicable margin													3.75%
Line of Credit \| Revolving Credit Facility \| Base Rate
Debt Instrument [Line Items]
Applicable margin													2.75%
Line of Credit \| Term Loan
Debt Instrument [Line Items]
Debt issuance costs				800,000
Unamortized discount				1,800,000
Line of Credit \| Term Loan \| LIBOR
Debt Instrument [Line Items]
Applicable margin													8.75%
Line of Credit \| Term Loan \| Base Rate
Debt Instrument [Line Items]
Applicable margin													7.75%
Convertible debt
Debt Instrument [Line Items]
Stated interest rate							3.75%				3.75%		3.75%	3.75%
Initial Issuance \| Convertible debt
Debt Instrument [Line Items]
Face amount of the Notes																$ 125,000,000.0
Additional Principal \| Convertible debt
Debt Instrument [Line Items]
Face amount of the Notes															$ 18,750,000
Senior Notes, due December 2019
Debt Instrument [Line Items]
Loss on debt extinguishment											$ 1,700,000		$ 200,000
Reduction of Additional Paid in Capital											(2,900,000)
Senior Notes, due December 2019 \| Convertible debt
Debt Instrument [Line Items]
Proceeds from convertible debt	29,300,000
Senior Notes, due December 2019 \| Convertible debt
Debt Instrument [Line Items]
Face amount of the Notes							$ 66,090,000				$ 75,090,000		$ 66,090,000	$ 75,090,000
Stated interest rate							4.75%				4.75%		4.75%	4.75%
Debt transfer amount						$ 75,100,000
Loss on debt extinguishment													$ 2,500,000
Reduction of Additional Paid in Capital													(7,600,000)
Transaction costs											$ 300,000
Repayment of term loan												$ 2,700,000	$ 13,000,000.0
Senior Notes, Due 2023
Debt Instrument [Line Items]
Effective interest rate							27.40%						27.40%
Senior Notes, Due 2023 \| Convertible debt
Debt Instrument [Line Items]
Stated interest rate						4.75%					4.75%			4.75%
Conversion price (in dollars per share)						$ 4.45
Settlement conversion price (dollars per share)						$ 280.90
Debt issuance costs						$ 1,600,000
Unamortized discount						$ 19,000,000.0
Interest rate, effective percentage						11.90%
Series B Senior Unsecured Convertible Notes \| Convertible debt
Debt Instrument [Line Items]
Face amount of the Notes	$ 34,405,000						$ 34,405,000						$ 34,405,000
Stated interest rate	7.00%
Conversion price (in dollars per share)	$ 0.72						$ 0.72						$ 0.72
Debt issuance costs	$ 2,300,000
Proceeds from convertible debt	$ 34,400,000
PIK interest, percentage	8.00%
Net proceeds from the financing	$ 26,900,000
Series B Senior Unsecured Convertible Notes \| Convertible debt \| 2023 Series A Unsecured Convertible Notes for Series B Senior Unsecured Convertible Notes
Debt Instrument [Line Items]
Debt issuance costs							$ 200,000						$ 200,000
Debt conversion, converted instrument	5,100,000												5,100,000
Carrying value of original debt							7,200,000						7,200,000
Fair value of embedded derivative liability							2,000,000.0						2,000,000.0
Future undiscounted cash flows							6,800,000						6,800,000
Series A Unsecured Convertible Notes due 2023 \| Convertible debt \| 2023 Series A Unsecured Convertible Notes for Series B Senior Unsecured Convertible Notes
Debt Instrument [Line Items]
Debt conversion, original amount	$ 9,000,000.0												9,000,000.0
Term Loan, due 2021
Debt Instrument [Line Items]
Face amount of the Notes					$ 25,000,000.0
Debt issuance costs					500,000
Unamortized discount					400,000
Loss on debt extinguishment													$ 1,300,000
Proceeds from revolver					$ 15,000,000.0
Transaction costs											$ 500,000
Repayment of term loan											25,600,000
Repayments of long-term debt, interest											100,000
Initial Term Loan
Debt Instrument [Line Items]
Paid-in-kind interest option, term													24 months
Paid-in-kind option, increase to principal balance													$ 8,500,000
Initial Term Loan \| Term Loan
Debt Instrument [Line Items]
Face amount of the Notes							88,464,000				$ 70,000,000		$ 88,464,000	$ 70,000,000
Initial Term Loan \| Line of Credit \| Term Loan
Debt Instrument [Line Items]
Face amount of the Notes				50,000,000.0
Delayed Draw Term Loan A \| Term Loan
Debt Instrument [Line Items]
Debt issuance costs				500,000
Proceeds from revolver							$ 10,000,000.0
Amount drawn on term loan			$ 20,000,000.0
Delayed Draw Term Loan A \| Term Loan \| Minimum
Debt Instrument [Line Items]
Interest rate, effective percentage							9.10%						9.10%
Delayed Draw Term Loan A \| Term Loan \| Maximum
Debt Instrument [Line Items]
Interest rate, effective percentage							12.20%						12.20%
Delayed Draw Term Loan B \| Line of Credit \| Term Loan
Debt Instrument [Line Items]
Face amount of the Notes				$ 15,000,000.0
Carrying value of original debt							$ 88,500,000						$ 88,500,000
Expiration of debt							$ 15,000,000.0