Other assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Other Assets Disclosure [Abstract]
Net deferred tax assets (net of valuation allowance)	$ 904,601	$ 953,676
Investments in equity method investees	227,358	210,001
Prepaid taxes	55,000	39,405
Other prepaid expenses	38,928	33,384
Capitalized software costs	78,766	81,862
Derivative assets	24,221	19,229
Trades receivables from brokers and counterparties	6,412	35,099
Receivables from investment maturities	0	125,000
Principal, interest and escrow servicing advances	52,848	41,916
Guaranteed mortgage loan claims receivable	58,784	59,659
Operating ROU assets	120,117	125,573
Finance ROU assets	18,989	18,884
Others	117,638	104,125
Total other assets	$ 1,703,662	$ 1,847,813
Operating Lease Right Of Use Asset Statement Of Financial Position	Other assets	Other assets
Finance Lease Right Of Use Asset Statement Of Financial Position	Other assets	Other assets