Indebtedness - Additional Information (Details) $ / shares in Units, shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) $ / shares	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) $ / shares	Jan. 31, 2022 USD ($)
Debt Instrument [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001		$ 0.0001		$ 0.0001
Debt discount amortization	$ 0	$ 571,000	$ 0	$ 1,692,000
Loan outstanding balance	10,237,544,000		10,237,544,000		$ 8,399,149,000
Recourse debt
Debt Instrument [Line Items]
Loan outstanding balance	911,830,000		911,830,000		898,040,000
Non-recourse debt
Debt Instrument [Line Items]
Loan outstanding balance	$ 9,325,714,000		$ 9,325,714,000		7,501,109,000
Bank Line Of Credit | Recourse debt
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity						$ 600,000,000
Bank Line Of Credit | Recourse debt | Base Rate
Debt Instrument [Line Items]
Interest rate	2.25%		2.25%
Bank Line Of Credit | Recourse debt | Federal Funds Rate
Debt Instrument [Line Items]
Interest rate	0.50%		0.50%
Bank Line Of Credit | Recourse debt | Prime Rate
Debt Instrument [Line Items]
Interest rate	1.00%		1.00%
2022 Credit Agreement, Base Rate Loans | Line of Credit | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate			0.00%
2022 Credit Agreement, SOFR Rate Loans | Line of Credit
Debt Instrument [Line Items]
Interest rate	3.25%		3.25%
2022 Credit Agreement, SOFR Rate Loans | Line of Credit | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate			0.00%
2022 Credit Agreement, SOFR Rate Loans | Line of Credit | One Month, Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate			0.11448%
2022 Credit Agreement, SOFR Rate Loans | Line of Credit | Three Month, Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate			0.26161%
2022 Credit Agreement, SOFR Rate Loans | Line of Credit | Six Month, Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate			0.42826%
Convertible Senior Notes Due 2026 | Convertible Debt
Debt Instrument [Line Items]
Initial conversion rate			0.0084807
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001		$ 0.0001
Conversion price (in dollars per share) | $ / shares	$ 117.91		$ 117.91
Debt discount amortization			$ 6,000,000
Effective interest rate	0.57%		0.57%
Convertible Senior Notes Due 2026 | Convertible Debt | Capped Call
Debt Instrument [Line Items]
Conversion price (in dollars per share) | $ / shares	$ 157.22		$ 157.22
Payments for capped call transaction			$ 28,000,000
Capped call price per share (in dollars per share) | $ / shares			$ 117.91
Number of shares covered by capped calls (in shares) | shares			3.4
Senior revolving and delayed draw loans | Non-recourse debt
Debt Instrument [Line Items]
Aggregate principal amount					$ 2,200,000,000
Subordinated Loans | Non-recourse debt
Debt Instrument [Line Items]
Loan outstanding balance	$ 137,000,000		$ 137,000,000
Senior non-revolving loans | Non-recourse debt
Debt Instrument [Line Items]
Loan outstanding balance	162,400,000		162,400,000
Subordinated revolving and delayed draw loans | Non-recourse debt
Debt Instrument [Line Items]
Loan outstanding balance	$ 122,400,000		$ 122,400,000