Summary of Significant Accounting Policies - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Assets:
Investments in real estate debt	$ 5,194,969	$ 5,279,928
Real estate loans held by consolidated securitization vehicles, at fair value	13,203,864	13,616,526
Investments in unconsolidated entities	3,896,500	3,861,077
Interest rate and foreign currency hedging derivatives	1,549,590	2,002,173
Liabilities:
Senior obligations of consolidated securitization vehicles, at fair value	11,853,523	12,233,141
Interest rate and foreign currency hedging derivatives	19,999	11,243
Recurring
Assets:
Investments in real estate debt	4,925,294	5,020,959
Real estate loans held by consolidated securitization vehicles, at fair value	13,203,864	13,616,526
Investments in unconsolidated entities	3,896,500	3,861,077
Interest rate and foreign currency hedging derivatives	1,549,590	2,002,173
Total	23,575,248	24,500,735
Liabilities:
Senior obligations of consolidated securitization vehicles, at fair value	11,853,523	12,233,141
Interest rate and foreign currency hedging derivatives	19,999	11,243
Total	11,873,522	12,244,384
Recurring | Level 1
Assets:
Investments in real estate debt	0	0
Real estate loans held by consolidated securitization vehicles, at fair value	0	0
Investments in unconsolidated entities	0	0
Interest rate and foreign currency hedging derivatives	0	0
Total	0	0
Liabilities:
Senior obligations of consolidated securitization vehicles, at fair value	0	0
Interest rate and foreign currency hedging derivatives	0	0
Total	0	0
Recurring | Level 2
Assets:
Investments in real estate debt	3,936,607	3,973,217
Real estate loans held by consolidated securitization vehicles, at fair value	13,203,864	13,616,526
Investments in unconsolidated entities	0	0
Interest rate and foreign currency hedging derivatives	1,549,590	2,002,173
Total	18,690,061	19,591,916
Liabilities:
Senior obligations of consolidated securitization vehicles, at fair value	11,853,523	12,233,141
Interest rate and foreign currency hedging derivatives	19,999	11,243
Total	11,873,522	12,244,384
Recurring | Level 3
Assets:
Investments in real estate debt	988,687	1,047,742
Real estate loans held by consolidated securitization vehicles, at fair value	0	0
Investments in unconsolidated entities	3,896,500	3,861,077
Interest rate and foreign currency hedging derivatives	0	0
Total	4,885,187	4,908,819
Liabilities:
Senior obligations of consolidated securitization vehicles, at fair value	0	0
Interest rate and foreign currency hedging derivatives	0	0
Total	0	0
Recurring | Fair Value Measured at Net Asset Value Per Share
Assets:
Investments in real estate debt	$ 269,700	$ 259,000