Debt (Summary) (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
Nov. 19, 2015 |
Dec. 15, 2014 |
|---|---|---|---|---|
| Outstanding debt obligations | ||||
| Convertible debt, total | $ 152,575 | $ 146,418 | ||
| Term notes | 100,409 | 138,335 | ||
| Convertible Notes | ||||
| Outstanding debt obligations | ||||
| Face amount | 172,500 | 172,500 | $ 172,500 | |
| Unaccredited discount on Convertible Notes | (17,149) | (22,367) | $ (27,500) | |
| Unamortized issuance costs | (2,776) | (3,715) | ||
| Convertible debt, total | 152,575 | 146,418 | ||
| Term Notes | ||||
| Outstanding debt obligations | ||||
| Face amount | 142,000 | 150,000 | $ 160,000 | |
| Unamortized issuance costs | (3,665) | (5,601) | ||
| Term notes | $ 138,335 | $ 144,399 |
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- Definition Represents the face amount of a debt instrument and over-allotment amounts. No definition available.
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- Definition Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after accumulated amortization, of debt discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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