Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Income taxes receivable	$ 798,640	$ 66,465
Pension assets	289,030	157,902
Investment in low-income housing tax credits	156,588	163,866
Cash surrender value of life insurance	113,391	111,671
Right of use assets for operating leases, net of accumulated amortization	63,207	68,048
Prepaid expenses	37,660	40,489
Federal Home Loan Bank stock	40,450	45,392
Other	158,390	130,119
Total other assets	$ 1,657,356	$ 783,953