The amount of borrowing at discretion of lender.

No definition available.

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- Definition

The back-end fee, expressed as a percentage of outstanding loan amount.

+ References

No definition available.

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- Definition

The facility fee, expressed as a percentage of outstanding loan amount.

+ References

No definition available.

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- Definition

Contractual discount rate for interest rate under the debt agreement.

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No definition available.

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- Definition

Percentage of worldwide cash reserves under debt arrangement.

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No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

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- Definition

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.

+ References

No definition available.

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- Definition

Amount before tax of foreign currency transaction realized and unrealized gain recognized in the income statement.

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Amount before tax of foreign currency transaction realized and unrealized loss recognized in the income statement.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

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.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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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 from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Long-term debt (Details) - USD ($) $ in Millions			3 Months Ended
Long-term debt (Details) - USD ($) $ in Millions	Dec. 06, 2018	May 06, 2016	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Long-term Debt
Maximum borrowing capacity			$ 50.0
2016 Amended Facility \| Hercules
Long-term Debt
Interest rate (as a percent)		8.25%
Interest expense recorded				$ 0.4
2016 Amended Facility \| Hercules \| Second Amended and Restated Loan and Security Agreement [Member]
Long-term Debt
Outstanding debt	$ 20.0
Back-end fee (as a percent)	4.85%
2016 Amended Facility \| Prime Rate \| Hercules
Long-term Debt
Variable interest rate basis		8.25%
2018 Amended Facility \| Hercules
Long-term Debt
Foreign currency loss			0.7
Foreign currency gain				$ 0.6
2018 Amended Facility \| Hercules \| Second Amended and Restated Loan and Security Agreement [Member]
Long-term Debt
Outstanding debt	$ 35.0
Interest rate (as a percent)	8.85%
Back-end fee (as a percent)	4.95%
Net cash inflow associated with increase in debt loan facility	$ 15.0
Maximum borrowing capacity	30.0
Borrowing capacity subject to discretion	15.0
Drew down amount	15.0
Amount the company has right to draw	$ 15.0
Facility fee (as a percent)	0.50%
2018 Amended Facility \| Prime Rate \| Hercules \| Second Amended and Restated Loan and Security Agreement [Member]
Long-term Debt
Variable interest rate basis	8.85%
Discount rate (as a percent)	5.50%
Venture debt loan facility \| 2016 Amended Facility \| Prime Rate \| Hercules
Long-term Debt
Discount rate (as a percent)		5.25%
Venture debt loan facility \| 2018 Amended Facility
Long-term Debt
Amortized cost net of discount and debt issuance costs			$ 35.9		$ 35.7
Percentage of worldwide cash reserves			65.00%
Venture debt loan facility \| 2018 Amended Facility \| Hercules
Long-term Debt
Interest expense recorded			$ 0.9