Conversion of Stock, Additional Shares Converted

No definition available.

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- Definition

Debt Instrument, Unamortized Discount, Gross

+ References

No definition available.

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- Definition

Debt instrument, Drawn Amount

+ References

No definition available.

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- Definition

Line Of Credit Facility, Draw Period

+ References

No definition available.

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- Definition

Line Of Credit Facility, Percentage Of Fee For Amounts Drawn

+ References

No definition available.

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- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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- Definition

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

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- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

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- Definition

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

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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

Consideration given by issuer of convertible debt to provide an incentive for debt holders to convert the debt to equity securities. The expense is equal to the fair value of all securities and other consideration transferred in the transaction in excess of the fair value of securities issuable pursuant to the original conversion terms.

+ References

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- Definition

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

+ References

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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.

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

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Debt - Narrative (Details) - USD ($)		12 Months Ended
Debt - Narrative (Details) - USD ($)	Jul. 23, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Sep. 30, 2018	Sep. 30, 2014
Debt Instrument [Line Items]
Principal amount of debt issued			$ 125,000,000
Convertible debt \| 2014 Notes
Debt Instrument [Line Items]
Principal amount of debt issued						$ 125,000,000
Convertible notes, interest rate (in percentage)						1.75%
Unamortized debt discount and issuance costs					$ (2,100,000)
Funds drawn at closing	$ 0	$ 0
Interest expense		2,500,000	$ 2,400,000	$ 2,500,000
Common Stock \| 2014 Notes
Debt Instrument [Line Items]
Conversion of stock (in shares)	5,040,323
Additional shares converted (in shares)	329,124
Induced conversion of convertible debt expense		$ 24,100,000
Revolving Credit Facility \| Delayed Draw Term Loan
Debt Instrument [Line Items]
Convertible notes, interest rate (in percentage)	8.625%
Maximum borrowing capacity	$ 100,000,000
Percentage of fee for amounts drawn	1.75%
Unused capacity, commitment fee percentage	1.50%
Fee amount	$ 1,500,000
Draw period	2 years