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Long-Term Debt | 3 Months Ended
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Mar. 31, 2019
Debt Disclosure [Abstract] |
Long-Term Debt | Note 8 – Long-Term Debt Convertible Notes The Company incurred approximately $10.0 million of debt issuance costs during the first quarter of 2016 relating to the issuance of $325 million aggregate principal amount of convertible senior unsecured notes that will mature on February 1, 2023 (the “Notes”) , which were recorded as a reduction to the Notes on the consolidated balance sheet. The $10.0 million of debt issuance costs is being amortized and recognized as additional interest expense over the seven-year contractual term of the Notes on a straight-line basis, which approximates the effective interest rate method. Total convertible notes payable consisted of the following at (in thousands):
|  | March 31, 2019 |  |  | December 31, 2018 |
Principal amount of the Notes |  | $ | 325,000 |  |  | $ | 325,000 |
Unamortized debt issuance costs |  |  | (5,457 | ) |  |  | (5,813 | )
Total convertible notes payable |  | $ | 319,543 |  |  | $ | 319,187 |
Interest expense incurred in connection with the Notes consisted of the following (in thousands):
|  | Three Months Ended March 31, |
|  | 2019 |  |  | 2018 |
Coupon interest at 3.75% |  | $ | 3,047 |  |  | $ | 3,047 |
Amortization of debt issuance costs |  |  | 356 |  |  |  | 356 |
Total interest expense on the Notes |  | $ | 3,403 |  |  | $ | 3,403 |

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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