Income Taxes (Components Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Loans, principally due to allowance for loan losses	$ 86,677	$ 90,875
Equity-based compensation	13,218	13,707
Accrued expenses	17,652	8,886
Deferred compensation	5,739	5,374
Deferred tax assets, Other	14,445	9,135
Total deferred tax assets	137,731	127,977
Unrealized gain on securities available for sale	80,790	49,225
Equipment lease financing	48,451	47,976
Land, buildings and equipment	19,116	20,579
Intangibles	4,642	4,700
Accretion on investment securities	6,877	3,922
Prepaid expenses	2,861	2,775
Deferred tax liabilities, Other	4,823	2,541
Total deferred tax liabilities	167,560	131,718
Net deferred tax asset (liability)	$ (29,829)	$ (3,741)