Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Accrued expenses	$ 286,567	$ 337,284
Accrued interest payable	36,442	39,288
Accounts payable	87,642	76,456
Dividends payable	39,586	39,525
Trades payable	402	9,461
Liability for GNMA loans sold with an option to repurchase	7,086	14,271
Reserves for loan indemnifications	6,472	7,520
Reserve for operational losses	37,165	39,266
Operating lease liabilities	131,438	137,290
Finance lease liabilities	25,729	24,737
Pension benefit obligation	7,544	8,290
Postretirement benefit obligation	118,308	118,336
Other liabilities	64,139	65,222
Total other liabilities	$ 848,520	$ 916,946
Operating Lease Liability Statement Of Financial Position	Other liabilities	Other liabilities
Finance Lease Liability Statement Of Financial Position	Other liabilities	Other liabilities