Debt Instruments - Schedule of long-term debt (Details) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Debt Instrument [Line Items] | ||
| Long-term debt, net | $ 234,577 | $ 0 |
| Convertible debt | 1.75% convertible senior notes due 2020 | ||
| Debt Instrument [Line Items] | ||
| Long-term debt, gross | 345,000 | 0 |
| Unamortized discount on convertible senior notes | (110,423) | 0 |
| Long-term debt, net | $ 234,577 | $ 0 |
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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. 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/presentationRef
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