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LONG-TERM DEBT (Tables) | 9 Months Ended
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Sep. 30, 2023
LONG-TERM DEBT |
Schedule of long-term debt | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
​ |  | 2023 |  | 2022
Convertible Notes due 2028 | ​ | $ | 575,000 | ​ | $ | —
Term Loan Facility due 2026 | ​ | ​ | 360,000 | ​ | ​ | 375,000
Gross long-term debt, including current maturities | ​ | ​ | 935,000 | ​ | ​ | 375,000
Less: debt discount | ​ | ​ | (15,152) | ​ | ​ | (1,738)
Net long-term debt, including current maturities | ​ | ​ | 919,848 | ​ | ​ | 373,262
Less: current maturities | ​ | ​ | (20,000) | ​ | ​ | (20,000)
Net long-term debt | ​ | $ | 899,848 | ​ | $ | 353,262
Schedule of contractual maturities of gross long-term debt | ​
​ | ​ | ​ | ​
Year Ending December 31, |  | ​
2023 (remaining) | ​ | $ | 5,000
2024 | ​ | ​ | 20,000
2025 | ​ | ​ | 20,000
2026 | ​ | ​ | 315,000
2027 | ​ | ​ | —
2028 | ​ | ​ | 575,000
Total | ​ | $ | 935,000
Schedule of borrowings under credit facility | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2023
​ | ​ | Balance |  | Interest Rate |  | Unused Line Fee
Convertible Notes | ​ | $ | 575,000 | ​ | 2.50% | ​ | —
Term Loan Facility at fixed interest rate due to interest rate swap | ​ | ​ | 225,094 | ​ | 1.17% | ​ | —
Term Loan Facility at variable interest rate | ​ | ​ | 134,906 | ​ | 6.17% | ​ | —
Revolving Facility at variable interest rate | ​ | ​ | — | ​ | 6.17% | ​ | 0.10%
Total borrowings | ​ | $ | 935,000 | ​ | ​ | ​ | ​
Schedule of interest expense and unused line of credit fees | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
​ |  | 2023 |  | 2022 |  | 2023 |  | 2022
Interest expense | ​ | $ | 3,528 | ​ | $ | 1,842 | ​ | $ | 8,818 | ​ | $ | 4,303
Amortization of debt issuance costs | ​ | ​ | 245 | ​ | ​ | 136 | ​ | ​ | 509 | ​ | ​ | 413
Unused line of credit fees and other | ​ | ​ | 52 | ​ | ​ | 51 | ​ | ​ | 152 | ​ | ​ | 152
Total interest expense | ​ | $ | 3,825 | ​ | $ | 2,029 | ​ | $ | 9,479 | ​ | $ | 4,868
Schedule of availability to withdraw on Revolving Facility | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
​ |  | 2023 |  | 2022
Available capacity on Revolving Facility | ​ | $ | 200,000 | ​ | $ | 200,000

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