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Financing Arrangements (Tables) | 3 Months Ended
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Mar. 31, 2016
Debt Disclosure [Abstract] |
Summary of carrying values and coupon rates on financing arrangements | The carrying values and the fixed contractual coupon rates of the Company's financing arrangements as of March 31, 2016 and December 31, 2015 were as follows (in thousands):
| March 31, 2016 |  | December 31, 2015
2019 Convertible Senior Notes |  |  |
Principal amount outstanding | $ | 245,000 |  |  | $ | 245,000 |
Unamortized discount | (37,169 | ) |  | (39,628 | )
Net carrying amount | 207,831 |  |  | 205,372 |
Less: Unamortized deferred financing costs | 3,178 |  |  | 3,387 |
Total notes payable | $ | 204,653 |  |  | $ | 201,985 |

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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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