Senior secured notes and corporate debt, net (Details) - USD ($) $ in Thousands		3 Months Ended
	Oct. 20, 2021	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	May 20, 2021
Senior secured notes, Convertible notes, and Corporate debt
Total Senior secured notes, net		$ 345,570		$ 345,127
Total Corporate debt, net		766,084		$ 764,908
Total carrying amount of debt components		1,111,654
Contractual maturities of the Senior Secured Notes, Convertible Notes, and Corporate debt
2025		120,000
2026		760,884
2027		100,000
2028		110,000
Thereafter		36,250
Total contractual amounts		1,127,134
Unamortized deferred financing costs, discounts, and premiums, net		(15,480)
Total carrying amount of debt components		1,111,654
4.50% Senior Secured Notes Due 2026
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value		$ 350,000
Interest rate (as a percent)		4.50%
Unamortized deferred financing costs		$ (4,430)
Total Senior secured notes, net		$ 345,570
Corporate Debt
Senior secured notes, Convertible notes, and Corporate debt
Repurchase price percentage in the event of change of control		101.00%
Unamortized discount		$ (6,432)
Unamortized deferred financing costs		(4,618)
Total Corporate debt, net		766,084
5.50% Senior Notes due 2028
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value		$ 110,000
Interest rate (as a percent)		5.50%
6.20% and 5.75% Senior Notes due 2026
Senior secured notes, Convertible notes, and Corporate debt
Number of shares sold in At The Market debt offering		0	0
6.20% and 5.75% Senior Notes due 2026 | Maximum
Senior secured notes, Convertible notes, and Corporate debt
Debt notes available for sale under At Market Issuance Sales Agreement					$ 100,000
6.20% Senior Notes due 2026
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value		$ 104,614
Interest rate (as a percent)		6.20%			6.20%
5.75% Senior Notes Due 2026
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value		$ 206,270
Interest rate (as a percent)		5.75%			5.75%
6.125% Senior Notes due 2025
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value		$ 120,000
Interest rate (as a percent)		6.125%
7.375% Senior Notes due in 2027
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value		$ 100,000
Interest rate (as a percent)		7.375%
5.00% Senior Notes due in 2026
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value		$ 100,000
Interest rate (as a percent)		5.00%
Junior Subordinated I-A Notes
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value		$ 15,000
Junior Subordinated I-A Notes | Secured Overnight Financing Rate
Senior secured notes, Convertible notes, and Corporate debt
Pricing, spread on variable (as a percent)		3.10%
Junior Subordinated I-B Notes
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value		$ 21,250
Junior Subordinated I-B Notes | Secured Overnight Financing Rate
Senior secured notes, Convertible notes, and Corporate debt
Pricing, spread on variable (as a percent)		3.10%
ReadyCap Holdings LLC | 4.50% Senior Secured Notes Due 2026
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value	$ 350,000
Interest rate (as a percent)	4.50%
Repurchase price percentage in the event of change of control	101.00%