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Convertible Notes (Tables) | 3 Months Ended
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Mar. 31, 2017
Debt Disclosure [Abstract] |
Schedule of convertible notes | The Company’s convertible notes are shown in the following table:
(In thousands) |  | As of March 31, 2017 |  | As of December 31, 2016
1.125% Convertible Senior Notes due 2018 |  | $ | 138,000 |  |  | $ | 138,000 |
Unamortized discount |  | (9,305 | ) |  | (10,913 | )
Unamortized debt issuance costs |  | (779 | ) |  | (920 | )
Total convertible notes |  | $ | 127,916 |  |  | $ | 126,167 |
Less current portion |  | — |  |  | — |
Total long-term convertible notes |  | $ | 127,916 |  |  | $ | 126,167 |
Schedule of interest expense on notes | Interest expense related to the notes for the three months ended March 31, 2017 and 2016 was as follows:
| Three Months Ended
| March 31,
| 2017 |  | 2016
| (In thousands)
2018 Notes coupon interest at a rate of 1.125% | $ | 388 |  |  | $ | 388 |
2018 Notes amortization of discount and debt issuance costs at an additional effective interest rate of 5.5% | 1,749 |  |  | 1,651 |
Total interest expense on convertible notes | $ | 2,137 |  |  | $ | 2,039 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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