Premises and Equipment (Summary of Premises and Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Land	$ 9,436	$ 9,436
Buildings and improvements	67,501	70,195
Leasehold improvements	65,606	71,332
Fixtures and equipment	64,890	73,730
Data processing and software	105,516	270,780
Total premises and equipment	312,949	495,473
Less: Accumulated depreciation and amortization	(228,318)	(396,211)
Premises and equipment, net	84,631	99,262
ROU lease assets, net	119,926	127,481
Property and equipment, net	204,557	226,743
Depreciation and amortization	$ 31,400	$ 32,500	$ 33,700