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Senior secured notes, convertible notes, and corporate debt, net (Tables) | 9 Months Ended
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Sep. 30, 2022
Senior secured notes, convertible notes, and corporate debt, net |
Schedule of components of the Senior Secured Notes, Convertible Notes, and Corporate debt | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Coupon Rate | ​ | Maturity Date |  | September 30, 2022
Senior secured notes principal amount(1) | ​ | 4.50 | % | ​ | 10/20/2026 | ​ | $ | 350,000
Unamortized deferred financing costs - Senior secured notes | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (7,088)
Total Senior secured notes, net | ​ | ​ | ​ | ​ | ​ | ​ | $ | 342,912
Convertible notes principal amount (2) | ​ | 7.00 | % |  | 8/15/2023 | ​ |  | 115,000
Unamortized discount - Convertible notes (3) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (308)
Unamortized deferred financing costs - Convertible notes | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (584)
Total Convertible notes, net | ​ | ​ | ​ | ​ | ​ | ​ | $ | 114,108
Corporate debt principal amount(4) | ​ | 5.50 | % | ​ | 12/30/2028 | ​ | ​ | 110,000
Corporate debt principal amount(5) | ​ | 6.20 | % | ​ | 7/30/2026 | ​ | ​ | 104,613
Corporate debt principal amount(5) | ​ | 5.75 | % | ​ | 2/15/2026 | ​ | ​ | 206,270
Corporate debt principal amount(6) | ​ | 6.125 | % | ​ | 4/30/2025 | ​ | ​ | 120,000
Corporate debt principal amount(7) | ​ | 7.375 | % | ​ | 7/31/2027 | ​ | ​ | 100,000
Unamortized discount - corporate debt | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (10,389)
Unamortized deferred financing costs - corporate debt | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (4,497)
Junior subordinated notes principal amount(8) | ​ | 3M + 3.10 | % | ​ | 3/30/2035 | ​ | ​ | 15,000
Junior subordinated notes principal amount(9) | ​ | 3M + 3.10 | % | ​ | 4/30/2035 | ​ | ​ | 21,250
Total corporate debt, net | ​ | ​ | ​ | ​ | ​ | ​ | $ | 662,247
Total carrying amount of debt | ​ | ​ | ​ | ​ | ​ | ​ | $ | 1,119,267
Total carrying amount of conversion option of equity components recorded in equity | ​ | ​ | ​ | ​ | ​ | ​ | $ | 308
(1) Interest on the senior secured notes is payable semiannually on April 20 and October 20 of each year.
(2) Interest on the convertible notes is payable quarterly on February 15, May 15, August 15, and November 15 of each year.
(3) Represents the discount created by separating the conversion option from the debt host instrument.
(4) Interest on the corporate debt is payable semiannually on June 30 and December 30 of each year.
(5) Interest on the corporate debt is payable quarterly on January 30, April 30, July 30, and October 30 of each year.
(6) Interest on the corporate debt is payable semiannually on April 30, and October 30 of each year.
(7) Interest on the corporate debt is payable semiannually on January 31, and July 31 of each year.
(8) Interest on the Junior subordinated notes I-A is payable quarterly on March 30, June 30, September 30, and December 30 of each year.
(9) Interest on the Junior subordinated notes I-B is payable quarterly on January 30, April 30, July 30, and October 30 of each year.
Schedule of contractual maturities of the Senior Secured Notes, Convertible Notes, and Corporate debt | ​
​ | ​ | ​ | ​
(in thousands) |  | September 30, 2022
2022 |  | $ | —
2023 |  | ​ | 115,000
2024 |  | ​ | —
2025 |  | ​ | 120,000
2026 | ​ | ​ | 660,883
Thereafter |  | ​ | 246,249
Total contractual amounts | ​ | $ | 1,142,132
Unamortized deferred financing costs, discounts, and premiums, net | ​ | ​ | (22,865)
Total carrying amount of debt | ​ | $ | 1,119,267

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