Secured Debt, Net - Schedule of All in Cost of Secured Credit Facilities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
Face value	$ 13,317,843
Secured debt, net | Line of Credit
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	732,400
Collateral	908,000
Secured debt, net | Line of Credit | Secured credit facilities
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	732,359	$ 614,141
Face value	$ 10,011,541	$ 9,705,529
Wtd. avg. all-in cost (percentage)	1.90%	1.92%
Collateral	$ 14,779,404	$ 14,807,821
Wtd. avg. all-in yield (percentage)	3.55%	3.58%
Net interest margin (percentage)	1.65%	1.66%
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	$ 332,431	$ 165,616
Face value	$ 4,070,890	$ 3,976,192
Wtd. avg. all-in cost (percentage)	1.52%	1.53%
Collateral	$ 6,215,254	$ 6,185,925
Wtd. avg. all-in yield (percentage)	3.19%	3.18%
Net interest margin (percentage)	1.67%	1.65%
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	$ 315,623	$ 74,118
Face value	$ 2,598,070	$ 2,238,376
Wtd. avg. all-in cost (percentage)	1.77%	1.78%
Collateral	$ 3,391,195	$ 3,140,937
Wtd. avg. all-in yield (percentage)	3.43%	3.52%
Net interest margin (percentage)	1.66%	1.74%
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	$ 0
Face value	$ 952,714	$ 969,541
Wtd. avg. all-in cost (percentage)	2.09%	2.09%
Collateral	$ 1,751,216	$ 1,802,431
Wtd. avg. all-in yield (percentage)	3.70%	3.67%
Net interest margin (percentage)	1.61%	1.58%
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	$ 84,305	$ 374,407
Face value	$ 2,389,867	$ 2,521,420
Wtd. avg. all-in cost (percentage)	2.61%	2.61%
Collateral	$ 3,421,739	$ 3,678,528
Wtd. avg. all-in yield (percentage)	4.27%	4.31%
Net interest margin (percentage)	1.66%	1.70%