Secured Debt, Net - Schedule of All in Cost of Secured Credit Facilities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
Total secured debt	$ 16,000,571
Secured debt, net | Line of Credit
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	457,400
Collateral	614,600
Secured debt, net | Line of Credit | Secured credit facilities
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	457,412	$ 112,078
Total secured debt	$ 12,110,576	$ 12,697,058
Wtd. Avg. All-in Cost (percentage)	1.89%	1.89%
Collateral	$ 17,958,345	$ 18,594,318
Wtd. Avg. All-in Yield (percentage)	3.60%	3.58%
Net Interest Margin (percentage)	1.71%	1.69%
Secured debt, net | Line of Credit | Secured credit facilities | + 1.50% or less
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 23,000	$ 0
Total secured debt	$ 5,522,099	$ 5,647,848
Wtd. Avg. All-in Cost (percentage)	1.52%	1.53%
Collateral	$ 8,265,569	$ 8,341,383
Wtd. Avg. All-in Yield (percentage)	3.27%	3.24%
Net Interest Margin (percentage)	1.75%	1.71%
Secured debt, net | Line of Credit | Secured credit facilities | + 1.51% to + 1.75%
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 0	$ 0
Total secured debt	$ 2,338,407	$ 2,679,699
Wtd. Avg. All-in Cost (percentage)	1.81%	1.82%
Collateral	$ 3,226,135	$ 3,723,365
Wtd. Avg. All-in Yield (percentage)	3.44%	3.49%
Net Interest Margin (percentage)	1.63%	1.67%
Secured debt, net | Line of Credit | Secured credit facilities | + 1.76% to + 2.00%
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 0	$ 42,908
Total secured debt	$ 1,644,666	$ 1,850,809
Wtd. Avg. All-in Cost (percentage)	2.10%	2.11%
Collateral	$ 2,696,203	$ 2,913,067
Wtd. Avg. All-in Yield (percentage)	3.85%	3.92%
Net Interest Margin (percentage)	1.75%	1.81%
Secured debt, net | Line of Credit | Secured credit facilities | + 2.01% or more
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 434,412	$ 69,170
Total secured debt	$ 2,605,404	$ 2,518,702
Wtd. Avg. All-in Cost (percentage)	2.60%	2.64%
Collateral	$ 3,770,438	$ 3,616,503
Wtd. Avg. All-in Yield (percentage)	4.30%	4.30%
Net Interest Margin (percentage)	1.70%	1.66%