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Convertible Subordinated Notes (Tables) | 3 Months Ended
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Mar. 31, 2018
Convertible Subordinated Notes [Abstract] |
Schedule of Liability and Equity Components of Convertible Subordinated Notes | The carrying values of the liability and equity components of the Convertible Notes at December 31, 2017 and March 31, 2018 are reflected in our Consolidated Balance Sheets as follows (in thousands):
| December 31, 2017 |  | March 31, 2018
Long-term liabilities: |  |  |
Principal amount | $ | 143,750 |  |  | $ | 143,750 |
Unamortized discount of liability component | (17,559 | ) |  | (16,398 | )
Convertible Notes issuance costs, net of accumulated amortization of $1,877 and $2,008, respectively | (1,750 | ) |  | (1,619 | )
Carrying value of the liability component | $ | 124,441 |  |  | $ | 125,733 |
Equity component carrying value | $ | 17,973 |  |  | $ | 17,973 |

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- Definition Convertible Subordinated Notes [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of borrowings which can be exchanged for a specified number of another security at the option of the issuer or the holder. Disclosures include, but are not limited to, principal amount, amortized premium or discount, and amount of liability and equity components. + References No definition available. + Details
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