Represents the borrowing option amount as a percentage of eligible accounts receivable, less certain reserves.

No definition available.

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The amount of additional commitment fee payable on first and second anniversaries of the closing date, or upon earlier termination of, or default under the agreement.

+ References

No definition available.

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The amount of debt termination charges required to pay if loan terminated before maturity date.

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No definition available.

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The percentage of loan termination charges on loan amount.

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No definition available.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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

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No definition available.

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

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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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No definition available.

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Represents the charge against earnings during the period for commitment fees and debt issuance expenses.

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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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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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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

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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Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Debt (Details) - USD ($)			1 Months Ended	12 Months Ended
Debt (Details) - USD ($)	Aug. 02, 2019	May 31, 2018	Nov. 30, 2018	Dec. 31, 2016	Sep. 30, 2019	Dec. 31, 2018	Nov. 15, 2018	Sep. 30, 2018
CRG Loan
Debt Instrument [Line Items]
Debt issued		$ 45,000,000.0		$ 80,000,000.0
Loss on early extinguishment of debt			$ 13,000,000.0
Loan Agreement
Debt Instrument [Line Items]
Borrowing capacity	$ 50,000,000.0
Basis for variable rate	5.50%
Percentage of debt termination fee on loan amount	2.00%
Debt termination fee	$ 1,000,000.0
Payment of initial commitment fee	150,000
Additional commitment fees payable each of the first and second anniversaries of the closing date	$ 150,000
Outstanding borrowings					$ 0
Loan Agreement \| Maximum
Debt Instrument [Line Items]
Borrowing option - percentage of eligible accounts receivable	85.00%
Convertible Debt \| Convertible Notes
Debt Instrument [Line Items]
Principal amount					$ 210,000,000	$ 210,000,000	$ 210,000,000.0
Warrants to purchase common stock
Debt Instrument [Line Items]
Shares of common stock right to purchase by warrant (in shares)								57,487
Warrants to purchase common stock \| CRG Loan
Debt Instrument [Line Items]
Warrant exercise price (in USD per share)		$ 23.00
Warrants and Rights Outstanding, Term		5 years
Warrants to purchase common stock \| CRG Loan \| Maximum
Debt Instrument [Line Items]
Shares of common stock right to purchase by warrant (in shares)		200,000