Debt Instruments - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands |
Sep. 30, 2018 |
May 24, 2018 |
Dec. 31, 2017 |
Dec. 09, 2015 |
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Debt Instrument [Line Items] | ||||
Long-term debt, net | $ 255,272 | $ 273,014 | ||
Convertible debt | 1.75% convertible senior notes due 2020 | ||||
Debt Instrument [Line Items] | ||||
1.75% convertible senior notes | 152,100 | 345,000 | ||
Unamortized discount and deferred issuance costs | (24,453) | (71,986) | ||
Long-term debt, net | $ 127,647 | $ 192,900 | 273,014 | |
Interest rate | 1.75% | 1.75% | ||
Convertible debt | 1.75% convertible senior notes due 2023 | ||||
Debt Instrument [Line Items] | ||||
1.75% convertible senior notes | $ 192,900 | 0 | ||
Unamortized discount and deferred issuance costs | (65,275) | 0 | ||
Long-term debt, net | $ 127,625 | $ 0 | ||
Interest rate | 1.75% | 1.75% |
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Amount of unamortized debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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