Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Other Liabilities Disclosure [Abstract]
Accrued expenses	$ 344,197	$ 308,594
Accrued interest payable	28,291	33,227
Accounts payable	79,430	91,804
Dividends payable	39,973	35,937
Trades payable	5,793	13,789
Liability for GNMA loans sold with an option to repurchase	8,821	12,806
Reserves for loan indemnifications	7,947	12,639
Reserve for operational losses	37,507	43,886
Operating lease liabilities	131,422	154,114
Finance lease liabilities	24,692	19,719
Pension benefit obligation	7,931	8,778
Postretirement benefit obligation	158,242	161,988
Other liabilities	60,280	70,967
Total other liabilities	$ 934,526	$ 968,248
Operating Lease Liability Statement Of Financial Position	Other liabilities	Other liabilities
Operating Lease Liability Statement Of Financial Position	Other liabilities	Other liabilities