Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Accrued expenses	$ 252,736	$ 337,284
Accrued interest payable	56,103	39,288
Accounts payable	102,337	76,456
Dividends payable	39,664	39,525
Trades payable	1,022	9,461
Liability for GNMA loans sold with an option to repurchase	7,108	14,271
Reserves for loan indemnifications	6,808	7,520
Reserve for operational losses	28,678	39,266
Operating lease liabilities	131,437	137,290
Finance lease liabilities	24,091	24,737
Pension benefit obligation	6,797	8,290
Postretirement benefit obligation	118,186	118,336
Other liabilities	66,218	65,222
Total other liabilities	$ 841,185	$ 916,946
Operating Lease Liability Statement Of Financial Position	Other liabilities	Other liabilities
Finance Lease Liability Statement Of Financial Position	Other liabilities	Other liabilities