Income Taxes (Components Of The Net Deferred Tax (Liabilities) Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets, Gross [Abstract]
Allowance for credit losses	$ 65,182	$ 86,120
Operating lease liabilities	24,556	29,239
Accrued severance and deferred compensation	17,343	16,729
Accrued bonuses	12,898	9,002
Other	25,700	35,362
Total gross deferred tax assets	145,679	176,452
Deferred Tax Liabilities, Gross [Abstract]
Residential mortgage servicing rights	33,837	25,476
Direct financing leases	33,164	25,802
Fair market value adjustment on junior subordinated debentures	22,501	32,251
Deferred loan fees and costs	22,036	19,564
Operating lease liabilities	21,195	27,010
Unrealized gains on investment securities	2,645	35,234
Other	14,654	15,466
Total gross deferred tax liabilities	150,032	180,803
Valuation allowance	0	(1,090)
Deferred Tax Liabilities, Net	$ (4,353)	$ (5,441)