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Debt (Tables) | 12 Months Ended
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Dec. 31, 2024
Debt Disclosure [Abstract] |
Schedule of Long-term Debt Instruments | Principal balances outstanding under our long-term debt obligations as of December 31, 2024 and 2023, consisted of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023
Term loans | ​ | $ | — | ​ | $ | 99,063
Convertible notes | ​ | ​ | 747,500 | ​ | ​ | 747,500
Less unamortized debt issuance costs | ​ |  | (17,949) | ​ |  | (23,550)
Total long-term debt | ​ |  | 729,551 | ​ |  | 823,013
Less current portion | ​ |  | — | ​ |  | —
Long-term portion | ​ | $ | 729,551 | ​ | $ | 823,013
Schedule of Maturities of Long-term Debt | Future minimum principal payments on our long-term debt as of December 31, 2024, are as follows (in thousands):
​ | ​ | ​ | ​
Year Ending | ​ | Future Minimum
December 31, |  | Principal Payments
2025 |  | $ | —
2026 | ​ | ​ | —
2027 | ​ | ​ | —
2028 | ​ | ​ | —
2029 | ​ | ​ | 747,500
Total future minimum principal payments | ​ | $ | 747,500
Schedule of Long-term Debt Covenants | The Amended Fourth A&R Credit Agreement is collateralized by substantially all of our assets. The Amended Fourth A&R Credit Agreement contains affirmative and negative covenants, representations and warranties, events of default and other terms customary for loans of this nature. In particular, the Amended Fourth A&R Credit Agreement requires that we maintain certain financial covenants, as follows:
​ | ​ | ​ | ​ | ​
​ |  | Covenant Requirement | ​
Consolidated Total Net Leverage Ratio (1) |  | ​ | 5.0 to 1.0 | ​
Consolidated Senior Secured Net Leverage Ratio (2) | ​ | ​ | 3.0 to 1.0 | ​
Consolidated Interest Coverage Ratio (3) |  | ​ | 3.0 to 1.0 | ​
​
(1) | Maximum Consolidated Total Net Leverage Ratio (as defined in the Amended Fourth A&R Credit Agreement) as of any fiscal quarter end.
(2) | Maximum Consolidated Senior Secured Net Leverage Ratio (as defined in the Amended Fourth A&R Credit Agreement) as of any fiscal quarter end.
(3) | Minimum ratio of Consolidated EBITDA (as defined in the Amended Fourth A&R Credit Agreement and adjusted for certain expenditures) to Consolidated Interest Expense (as defined in the Amended Fourth A&R Credit Agreement) for any period of four consecutive fiscal quarters.

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