Senior secured notes and corporate debt, net (Details) - USD ($) $ in Thousands			3 Months Ended		6 Months Ended
	Apr. 12, 2024	Oct. 20, 2021	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	May 20, 2021
Senior secured notes, Convertible notes, and Corporate debt
Total Senior secured notes, net			$ 417,040		$ 417,040		$ 345,127
Total Corporate debt, net			767,271		767,271		$ 764,908
Total carrying amount of debt components			1,184,311		1,184,311
Maximum borrowing capacity			5,179,854		5,179,854
Amount drawn					1,620,500	$ 3,360,360
Contractual maturities of the Senior Secured Notes, Convertible Notes, and Corporate debt
2025			120,000		120,000
2026			760,884		760,884
2027			100,000		100,000
2028			110,000		110,000
Thereafter			111,250		111,250
Total contractual amounts			1,202,134		1,202,134
Unamortized deferred financing costs, discounts, and premiums, net			(17,823)		(17,823)
Total carrying amount of debt components			1,184,311		1,184,311
Senior Secured Notes
Senior secured notes, Convertible notes, and Corporate debt
Total Senior secured notes, net			417,040		417,040
4.50% Senior Secured Notes Due 2026
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value			$ 350,000		$ 350,000
Interest rate (as a percent)			4.50%		4.50%
Unamortized deferred financing costs			$ (5,220)		$ (5,220)
Corporate Debt
Senior secured notes, Convertible notes, and Corporate debt
Repurchase price percentage in the event of change of control					101.00%
Unamortized discount			(5,730)		$ (5,730)
Unamortized deferred financing costs			(4,133)		(4,133)
Total Corporate debt, net			767,271		767,271
5.50% Senior Notes due 2028
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value			$ 110,000		$ 110,000
Interest rate (as a percent)			5.50%		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	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		$ 104,614
Interest rate (as a percent)			6.20%		6.20%			6.20%
5.75% Senior Notes Due 2026
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value			$ 206,270		$ 206,270
Interest rate (as a percent)			5.75%		5.75%			5.75%
6.125% Senior Notes due 2025
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value			$ 120,000		$ 120,000
Interest rate (as a percent)			6.125%		6.125%
7.375% Senior Notes due in 2027
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value			$ 100,000		$ 100,000
Interest rate (as a percent)			7.375%		7.375%
5.00% Senior Notes due in 2026
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value			$ 100,000		$ 100,000
Interest rate (as a percent)			5.00%		5.00%
Junior Subordinated I-A Notes
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value			$ 15,000		$ 15,000
Junior Subordinated I-A Notes | SOFR
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		$ 21,250
Junior Subordinated I-B Notes | SOFR
Senior secured notes, Convertible notes, and Corporate debt
Pricing, spread on variable (as a percent)					3.10%
Credit Agreement | Term loan due 2029
Senior secured notes, Convertible notes, and Corporate debt
Debt instrument, face value			75,000		$ 75,000
Unamortized discount			$ (2,740)		$ (2,740)
Maximum borrowing capacity	$ 115,250
Amount drawn	$ 75,000
Commitment fee percentage	1.00%
Credit Agreement | Term loan due 2029 | SOFR
Senior secured notes, Convertible notes, and Corporate debt
Pricing, spread on variable (as a percent)	5.50%				5.50%
Pricing, spread on variable when loan is rated below investment grade (as a percent)	6.50%
Credit Agreement | Term loan due 2029 | Base rate
Senior secured notes, Convertible notes, and Corporate debt
Pricing, spread on variable (as a percent)	4.50%
Pricing, spread on variable when loan is rated below investment grade (as a percent)	5.50%
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%