Income Taxes (Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Right-of-use liability	$ 52,472	$ 0
Allowance for credit losses	41,809	40,342
Deferred compensation	23,555	22,363
Stock-based compensation	8,487	7,544
Loans	5,673	4,540
Net unrealized losses on derivatives included in other comprehensive income	4,781	0
Federal net operating loss carryforward	4,016	5,348
Other real estate owned	2,198	2,429
Nonaccrued interest	2,164	1,357
AMT credit carryforward	1,338	1,395
Net unrealized losses on securities included in other comprehensive income	0	15,430
Other	2,366	4,376
Total gross deferred tax assets	148,859	105,124
Deferred tax liabilities:
Equipment leasing	120,114	90,306
Premises and equipment	51,544	28,517
Right-of-use asset	43,912	0
Capitalized servicing rights	20,277	16,663
Goodwill and intangible assets	12,819	12,921
Net unrealized gains on securities included in other comprehensive income	5,443	0
Deferred loan fees and costs	4,604	3,446
Fair value adjustments on loans	3,603	2,833
Net unrealized gains on derivatives included in other comprehensive income	0	2,863
Other	5,397	5,295
Total gross deferred liabilities	267,713	162,844
Net deferred tax liabilities	$ (118,854)	$ (57,720)