Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Accrued expenses	$ 337,284	$ 308,594
Accrued interest payable	39,288	33,227
Accounts payable	76,456	91,804
Dividends payable	39,525	35,937	$ 33,700
Trades payable	9,461	13,789
Liability for GNMA loans sold with an option to repurchase	14,271	12,806
Reserves for loan indemnifications	7,520	12,639
Reserve for operational losses	39,266	43,886
Operating lease liabilities	137,290	154,114
Finance lease liabilities	24,737	19,719
Pension benefit obligation	8,290	8,778
Postretirement benefit obligation	118,336	161,988
Other liabilities	65,222	70,967
Total other liabilities	$ 916,946	$ 968,248
Operating Lease Liability Statement Of Financial Position	Other liabilities	Other liabilities
Finance Lease Liability Statement Of Financial Position	Other liabilities	Other liabilities