Secured Debt, Net - Additional Information (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) lender	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Oct. 01, 2024	Apr. 03, 2024 USD ($)
Debt Instrument [Line Items]
Total secured debt	$ 14,931,693,000		$ 14,931,693,000
Interest expense	$ 321,744,000	$ 353,972,000	$ 1,004,854,000	$ 1,015,718,000
Line of Credit
Debt Instrument [Line Items]
Covenants, EBITDA to fixed charges, in percent	1.25		1.25
Covenants, minimum tangible net worth	$ 3,600,000,000		$ 3,600,000,000
Covenants, minimum cash liquidity amount	$ 10,000,000.0		$ 10,000,000.0
Covenants, percentage of recourse indebtedness	0.05		0.05
Covenants, indebtedness to total assets, in percent	0.8333		0.8333
Line of Credit | Subsequent Event
Debt Instrument [Line Items]
Covenants, EBITDA to fixed charges, in percent						1.3
Line of Credit | Minimum
Debt Instrument [Line Items]
Covenants, percentage of tangible assets on cash proceeds from equity issuances			0.75
Line of Credit | Maximum
Debt Instrument [Line Items]
Covenants, percentage of tangible assets on cash proceeds from equity issuances			0.85
Secured debt, net | Line of Credit
Debt Instrument [Line Items]
New borrowings			$ 531,500,000
Collateral	$ 709,000,000		709,000,000
Secured debt, net | Line of Credit | Secured credit facilities
Debt Instrument [Line Items]
New borrowings			531,530,000		$ 112,078,000
Collateral	16,451,583,000		$ 16,451,583,000		18,594,318,000
Number of lenders | lender			14
Remaining borrowing capacity	1,100,000,000		$ 1,100,000,000
Maximum borrowing capacity							$ 100,000,000.0
Total secured debt	11,012,558,000		11,012,558,000		12,697,058,000
Secured debt, net | Line of Credit | Acquisition facility
Debt Instrument [Line Items]
Total secured debt	$ 0		0		0
Interest expense			126,000		722,000
Amortization of deferred fees and expenses			$ 35,000		$ 233,000