Loans Receivable (Schedule Of Aging Of Non-Covered Loans) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012		Dec. 31, 2011
Loans Receivable [Line Items]
Total non-covered loans, net of unearned income	$ 6,217,644		$ 6,053,588
Non-Covered Loans Excluding Acquired Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	7,114	[1]	7,329	[1]
Past Due, 60-89 days	951	[1]	1,786	[1]
Past Due, Greater than 90 days	54,420	[1]	56,295	[1]
Total past due	62,485		65,410
Current	5,537,253		5,284,016
Total non-covered loans, net of unearned income	5,599,738		5,349,426
Recorded investment > 90 days and accruing	1,222		1,841
Acquired Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	6,800	[2]	11,242	[2]
Past Due, 60-89 days	1,580	[2]	4,845	[2]
Past Due, Greater than 90 days	40,151	[2]	39,237	[2]
Total past due	48,531		55,324
Current	635,578		720,636
Discount	(66,203)		(71,798)
Total non-covered loans, net of unearned income	617,906		704,162
Recorded investment > 90 days and accruing	2,190		1,915
Residential - Prime [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	507	[1]	731	[1]
Past Due, 60-89 days	363	[1]	325	[1]
Past Due, Greater than 90 days	4,759	[1]	6,009	[1]
Total past due	5,629		7,065
Current	253,297		271,534
Total non-covered loans, net of unearned income	258,926		278,599
Recorded investment > 90 days and accruing	963		1,099
Residential - Prime [Member] | Acquired Loans [Member] | Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days			124	[2]
Past Due, 60-89 days	155	[2]	60	[2]
Past Due, Greater than 90 days	185	[2]	185	[2]
Total past due	340		369
Current	4,031		4,145
Discount	(294)
Total non-covered loans, net of unearned income	4,077		4,514
Recorded investment > 90 days and accruing	185		185
Residential - Subprime [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days				[1]
Past Due, 60-89 days				[1]
Past Due, Greater than 90 days				[1]
Total past due
Current
Total non-covered loans, net of unearned income
Recorded investment > 90 days and accruing
Residential - Subprime [Member] | Acquired Loans [Member] | Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days				[2]
Past Due, 60-89 days				[2]
Past Due, Greater than 90 days				[2]
Total past due
Current
Discount
Total non-covered loans, net of unearned income
Recorded investment > 90 days and accruing
Commercial Real Estate - Construction [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	6	[1]	266	[1]
Past Due, Greater than 90 days	2,409	[1]	2,582	[1]
Total past due	2,415		2,848
Current	296,203		273,824
Total non-covered loans, net of unearned income	298,618		276,672
Commercial Real Estate - Construction [Member] | Acquired Loans [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	992	[2]	629	[2]
Past Due, 60-89 days	178	[2]
Past Due, Greater than 90 days	3,263	[2]	3,755	[2]
Total past due	4,433		4,384
Current	44,671		61,705
Discount	(4,610)		(6,458)
Total non-covered loans, net of unearned income	44,494		59,631
Recorded investment > 90 days and accruing	93		345
Commercial Real Estate - Other [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	1,411	[1]	880	[1]
Past Due, 60-89 days	84	[1]	54	[1]
Past Due, Greater than 90 days	32,366	[1]	34,087	[1]
Total past due	33,861		35,021
Current	1,808,838		1,778,235
Total non-covered loans, net of unearned income	1,842,699		1,813,256
Recorded investment > 90 days and accruing	108		636
Commercial Real Estate - Other [Member] | Acquired Loans [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	3,473	[2]	7,213	[2]
Past Due, 60-89 days	893	[2]	4,036	[2]
Past Due, Greater than 90 days	31,106	[2]	29,725	[2]
Total past due	35,472		40,974
Current	400,364		448,288
Discount	(40,920)		(47,808)
Total non-covered loans, net of unearned income	394,916		441,454
Recorded investment > 90 days and accruing	1,504		794
Commercial Business [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	1,977	[1]	302	[1]
Past Due, 60-89 days			277	[1]
Past Due, Greater than 90 days	6,653	[1]	6,642	[1]
Total past due	8,630		7,221
Current	1,926,459		1,793,959
Total non-covered loans, net of unearned income	1,935,089		1,801,180
Recorded investment > 90 days and accruing	24		20
Commercial Business [Member] | Acquired Loans [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	953	[2]	183	[2]
Past Due, 60-89 days	2	[2]	69	[2]
Past Due, Greater than 90 days	716	[2]	639	[2]
Total past due	1,671		891
Current	95,138		105,796
Discount	(11,388)		(11,371)
Total non-covered loans, net of unearned income	85,421		95,316
Recorded investment > 90 days and accruing	12		3
Indirect Automobile [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Consumer Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	498	[1]	1,232	[1]
Past Due, 60-89 days	191	[1]	159	[1]
Past Due, Greater than 90 days	861	[1]	994	[1]
Total past due	1,550		2,385
Current	277,236		248,070
Total non-covered loans, net of unearned income	278,786		250,455
Indirect Automobile [Member] | Acquired Loans [Member] | Consumer Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	85	[2]	171	[2]
Past Due, 60-89 days	12	[2]	10	[2]
Past Due, Greater than 90 days	181	[2]	258	[2]
Total past due	278		439
Current	9,000		10,813
Discount			189
Total non-covered loans, net of unearned income	9,278		11,441
Home Equity [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Consumer Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	2,248	[1]	3,102	[1]
Past Due, 60-89 days	182	[1]	717	[1]
Past Due, Greater than 90 days	6,422	[1]	4,955	[1]
Total past due	8,852		8,774
Current	795,167		741,968
Total non-covered loans, net of unearned income	804,019		750,742
Recorded investment > 90 days and accruing	127		82
Home Equity [Member] | Acquired Loans [Member] | Consumer Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	1,173	[2]	2,509	[2]
Past Due, 60-89 days	317	[2]	125	[2]
Past Due, Greater than 90 days	4,317	[2]	4,104	[2]
Total past due	5,807		6,738
Current	63,465		73,822
Discount	(1,802)		(4,839)
Total non-covered loans, net of unearned income	67,470		75,721
Recorded investment > 90 days and accruing	396		438
Credit Card [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Consumer Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	125	[1]	467	[1]
Past Due, 60-89 days	79	[1]	107	[1]
Past Due, Greater than 90 days	408	[1]	403	[1]
Total past due	612		977
Current	45,297		46,786
Total non-covered loans, net of unearned income	45,909		47,763
Credit Card [Member] | Acquired Loans [Member] | Consumer Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days				[2]
Past Due, 60-89 days				[2]
Past Due, Greater than 90 days				[2]
Total past due
Current
Discount
Total non-covered loans, net of unearned income
Recorded investment > 90 days and accruing
Consumer - Other [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Consumer Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	342	[1]	349	[1]
Past Due, 60-89 days	52	[1]	147	[1]
Past Due, Greater than 90 days	542	[1]	623	[1]
Total past due	936		1,119
Current	134,756		129,640
Total non-covered loans, net of unearned income	135,692		130,759
Recorded investment > 90 days and accruing			4
Consumer - Other [Member] | Acquired Loans [Member] | Consumer Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	124	[2]	413	[2]
Past Due, 60-89 days	23	[2]	545	[2]
Past Due, Greater than 90 days	383	[2]	571	[2]
Total past due	530		1,529
Current	18,909		16,067
Discount	(7,189)		(1,511)
Total non-covered loans, net of unearned income	12,250		16,085
Recorded investment > 90 days and accruing			$ 150

[1] Past due loans include loans on nonaccrual status as of the period indicated. Nonaccrual loans are presented separately in the "Nonaccrual Loans" section below.

[2] Past due information includes loans acquired from OMNI and Cameron at the gross contractual balance outstanding at March 31, 2012 and December 31, 2011.