Income Taxes (Components Of The Net Deferred Tax (Liabilities) Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Covered Loans	$ 33,782	$ 36,221
Allowance for loan and lease losses	28,610	38,812
Accrued severance and deferred compensation	13,376	10,976
Tax credits	5,120	6,284
Non-covered other real estate owned	4,759	2,607
Covered other real estate owned	3,655	6,815
Non-covered loans	2,450	2,535
Discount on trust preferred securities	1,974	6,566
Basis differences of stock and securities	1,527	2,335
Net operating loss carryforwards		1,291
Other	10,725	9,826
Total gross deferred tax assets	105,978	124,268
FDIC indemnification asset	25,912	45,817
Unrealized gain on investment securities	19,567	20,099
Fair market value adjustment on junior subordinated debentures	16,306	22,713
Premises and equipment depreciation	10,847	7,058
Mortgage servicing rights	8,834	8,789
Deferred loan fees	5,706	4,983
Intangibles	5,161	4,928
Leased assets	3,930	4,251
Other	6,186	6,063
Total gross deferred tax liabilities	102,449	124,701
Net deferred tax (liabilities) assets	$ 3,529	$ (433)