Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities
Net income (loss)	$ 213,008	$ (34,780)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Satisfaction of management and incentive fees in stock		19,277
Non-cash compensation expense	16,105	17,329
Amortization of deferred fees on loans and debt securities	(28,674)	(28,325)
Amortization of deferred financing costs and premiums/discount on debt obligations	19,277	18,699
(Decrease) increase in current expected credit loss reserve	(52,199)	179,521
Unrealized gain on assets denominated in foreign currencies, net	(7,065)	(953)
Unrealized loss on derivative financial instruments, net	635	648
Realized loss on derivative financial instruments, net	3,119	353
Changes in assets and liabilities, net
Other assets	(4,261)	7,778
Other liabilities	5,428	(3,839)
Net cash provided by operating activities	165,373	175,708
Cash flows from investing activities
Origination and fundings of loans receivable	(3,636,063)	(1,240,642)
Principal collections and sales proceeds from loans receivable and debt securities	2,670,773	928,348
Origination and exit fees received on loans receivable	41,262	11,969
Receipts under derivative financial instruments	23,194	85,465
Payments under derivative financial instruments	(72,478)	(28,488)
Collateral deposited under derivative agreements	(81,430)	(191,540)
Return of collateral deposited under derivative agreements	129,770	200,160
Net cash used in investing activities	(924,972)	(234,728)
Cash flows from financing activities
Borrowings under secured debt	4,230,404	2,152,438
Repayments under secured debt	(3,332,395)	(2,403,349)
Proceeds from issuance of securitized debt obligations	803,750	1,243,125
Repayment of securitized debt obligations	(888,763)	(179,759)
Borrowings under asset-specific debt	77,975	47,604
Repayments under asset-specific debt	(178,073)	(82,754)
Net proceeds from issuance of term loans	298,500	315,438
Repayments of term loans	(6,625)	(3,744)
Payment of deferred financing costs	(22,811)	(27,906)
Contributions from non-controlling interests	28,193	8,108
Distributions to non-controlling interests	(21,874)	(10,128)
Net proceeds from issuance of class A common stock	0	278,322
Dividends paid on class A common stock	(182,163)	(167,623)
Net cash provided by financing activities	806,118	1,169,772
Net increase in cash, cash equivalents, and restricted cash	46,519	1,110,752
Cash, cash equivalents, and restricted cash at beginning of period	289,970	150,090
Effects of currency translation on cash, cash equivalents, and restricted cash	3,063	(1,006)
Cash, cash equivalents, and restricted cash at end of period	339,552	1,259,836
Supplemental disclosure of cash flows information
Payments of interest	(140,601)	(173,040)
Receipts (payments) of income taxes	141	(148)
Supplemental disclosure of non-cash investing and financing activities
Dividends declared, not paid	(91,150)	(90,642)
Satisfaction of management and incentive fees in stock	0	19,277
Loan principal payments held by servicer, net	$ 27,612	$ 81,261