Loans and Leases (Composition of the Loans and Leases Outstanding By Credit Quality Indicator) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012		Mar. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	$ 11,509,080	[1]	$ 11,576,115	[2]	$ 11,489,529	[1]
Covered under loss share agreements	1,621,327	[1]	1,809,235	[2]	2,183,869	[1]
Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	8,022,186		7,994,495		7,830,041
Covered under loss share agreements	1,292,943		1,450,035		1,745,709
Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	3,486,894		3,581,620		3,659,488
Covered under loss share agreements	328,384		359,200		438,160
Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	300,497		309,190		346,557
Covered under loss share agreements	204,524		237,906		310,601
Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	115,628		131,992		132,677
Covered under loss share agreements	11,024		20,793		85,555
Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	5,352,594		5,341,839		5,127,948
Covered under loss share agreements	948,452		1,054,473		1,195,541
Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	176,456		160,980		150,316
Covered under loss share agreements	93,232		107,119		144,978
Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,662,124		1,726,126		1,739,724
Covered under loss share agreements	45,693		49,463		93,261
Lease Financing | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	336,329		330,679		315,704
Covered under loss share agreements	0		0		45
Other | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	194,186		125,681		149,792
Covered under loss share agreements	1,042		1,074		1,283
Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	834,879		822,889		793,612
Covered under loss share agreements	278,997		297,926		298,538
Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	2,150,800		2,210,133		2,282,138
Covered under loss share agreements	37,139		38,710		50,016
Consumer | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	385,587		416,606		451,061
Covered under loss share agreements	1,224		1,771		4,051
Pass | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	7,539,044		7,459,277		7,195,417
Pass | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	274,917		274,480		303,018
Pass | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	5,050,073		5,018,677		4,744,063
Pass | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	168,885		151,549		136,776
Pass | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,519,890		1,564,862		1,554,112
Pass | Lease Financing | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	332,790		325,626		309,681
Pass | Other | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	192,489		124,083		147,767
Special Mention | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	183,149		200,073		311,248
Special Mention | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	13,878		14,666		20,097
Special Mention | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	149,904		161,789		243,495
Special Mention | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,771		2,812		6,805
Special Mention | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	15,121		18,368		35,497
Special Mention | Lease Financing | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,084		1,601		3,336
Special Mention | Other | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,391		837		2,018
Substandard | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	181,803		196,257		187,690
Substandard | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	11,501		18,761		21,297
Substandard | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	139,262		145,980		130,815
Substandard | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	5,158		5,038		6,068
Substandard | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	24,176		24,059		27,057
Substandard | Lease Financing | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,689		1,663		2,453
Substandard | Other | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	17		756		0
Doubtful | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	11,751		16,336		10,450
Doubtful | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	73		952		1,821
Doubtful | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	9,600		12,822		6,588
Doubtful | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	98		98		365
Doubtful | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,252		1,693		1,676
Doubtful | Lease Financing | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	728		771		0
Doubtful | Other | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	0		0		0
Ungraded | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	106,439		122,552		125,236
Ungraded | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	128		331		324
Ungraded | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	3,755		2,571		2,987
Ungraded | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	544		1,483		302
Ungraded | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	101,685		117,144		121,382
Ungraded | Lease Financing | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	38		1,018		234
Ungraded | Other | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	289		5		7
Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	1,621,327		1,809,235		2,183,869
Covered Loans | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	204,524		237,906		310,601
Covered Loans | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	11,024		20,793		85,555
Covered Loans | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	948,452		1,054,473		1,195,541
Covered Loans | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	93,232		107,119		144,978
Covered Loans | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	45,693		49,463		93,261
Covered Loans | Lease Financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		45
Covered Loans | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	278,997		297,926		298,538
Covered Loans | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	37,139		38,710		50,016
Covered Loans | Consumer and Other | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	2,266		2,845		5,334
Covered Loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	596,441		650,661		731,002
Covered Loans | Pass | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	11,396		17,010		31,445
Covered Loans | Pass | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	262		334		7,020
Covered Loans | Pass | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	343,535		376,974		392,233
Covered Loans | Pass | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	31,031		33,570		56,689
Covered Loans | Pass | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	17,131		19,451		31,768
Covered Loans | Pass | Lease Financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		45
Covered Loans | Pass | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	163,937		172,165		173,640
Covered Loans | Pass | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	27,657		29,540		35,684
Covered Loans | Pass | Consumer and Other | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	1,492		1,617		2,478
Covered Loans | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	299,209		331,614		506,040
Covered Loans | Special Mention | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	25,886		25,734		89,243
Covered Loans | Special Mention | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		14,263
Covered Loans | Special Mention | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	233,026		259,264		335,020
Covered Loans | Special Mention | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	12,832		17,518		26,736
Covered Loans | Special Mention | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	10,822		12,465		21,376
Covered Loans | Special Mention | Lease Financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		0
Covered Loans | Special Mention | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	14,687		14,863		18,054
Covered Loans | Special Mention | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	1,926		1,736		802
Covered Loans | Special Mention | Consumer and Other | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	30		34		546
Covered Loans | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	535,711		616,692		682,406
Covered Loans | Substandard | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	94,938		105,061		86,750
Covered Loans | Substandard | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	9,326		17,190		53,919
Covered Loans | Substandard | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	298,647		344,542		382,134
Covered Loans | Substandard | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	37,862		44,335		51,918
Covered Loans | Substandard | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	12,060		14,698		24,905
Covered Loans | Substandard | Lease Financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		0
Covered Loans | Substandard | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	75,082		83,193		70,545
Covered Loans | Substandard | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	7,556		7,434		11,153
Covered Loans | Substandard | Consumer and Other | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	240		239		1,082
Covered Loans | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	163,918		182,568		234,067
Covered Loans | Doubtful | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	69,782		87,445		99,747
Covered Loans | Doubtful | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	1,436		3,269		10,353
Covered Loans | Doubtful | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	72,572		73,016		85,993
Covered Loans | Doubtful | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	11,507		11,696		9,635
Covered Loans | Doubtful | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	5,366		2,757		15,212
Covered Loans | Doubtful | Lease Financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		0
Covered Loans | Doubtful | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	3,255		4,268		9,934
Covered Loans | Doubtful | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		2,377
Covered Loans | Doubtful | Consumer and Other | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		117		816
Covered Loans | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	26,048		27,700		30,354
Covered Loans | Ungraded | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	2,522		2,656		3,416
Covered Loans | Ungraded | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		0
Covered Loans | Ungraded | Commercial Mortgage | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	672		677		161
Covered Loans | Ungraded | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		0
Covered Loans | Ungraded | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	314		92		0
Covered Loans | Ungraded | Lease Financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		0
Covered Loans | Ungraded | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	22,036		23,437		26,365
Covered Loans | Ungraded | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	0		0		0
Covered Loans | Ungraded | Consumer and Other | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered under loss share agreements	504		838		412
Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	11,509,080		11,576,115		11,489,529
Noncovered Loans | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	3,486,894		3,581,620		3,659,488
Noncovered Loans | Construction and Land Development | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	300,497		309,190		346,557
Noncovered Loans | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	115,628		131,992		132,677
Noncovered Loans | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	5,352,594		5,341,839		5,127,948
Noncovered Loans | Other Commercial Real Estate | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	176,456		160,980		150,316
Noncovered Loans | Commercial and Industrial | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,662,124		1,726,126		1,739,724
Noncovered Loans | Lease Financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	336,329		330,679		315,704
Noncovered Loans | Other | Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	194,186		125,681		149,792
Noncovered Loans | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	834,879		822,889		793,612
Noncovered Loans | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	2,150,800		2,210,133		2,282,138
Noncovered Loans | Consumer | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	385,587		416,606		451,061
Noncovered Loans | Current | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	3,428,474		3,514,794		3,614,484
Noncovered Loans | Current | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	114,077		128,764		130,561
Noncovered Loans | Current | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	802,439		786,626		763,411
Noncovered Loans | Current | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	2,130,189		2,190,186		2,274,091
Noncovered Loans | Current | Consumer | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	381,769		409,218		446,421
Noncovered Loans | 30 to 59 Days Past Due | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	35,717		34,925		19,043
Noncovered Loans | 30 to 59 Days Past Due | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	217		1,941		808
Noncovered Loans | 30 to 59 Days Past Due | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	19,663		15,711		14,001
Noncovered Loans | 30 to 59 Days Past Due | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	14,022		12,868		2,349
Noncovered Loans | 30 to 59 Days Past Due | Consumer | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,815		4,405		1,885
Noncovered Loans | 60 to 89 Days Past Due | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	4,818		12,954		5,498
Noncovered Loans | 60 to 89 Days Past Due | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	63		490		446
Noncovered Loans | 60 to 89 Days Past Due | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	789		7,559		2,812
Noncovered Loans | 60 to 89 Days Past Due | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	2,998		3,200		1,212
Noncovered Loans | 60 to 89 Days Past Due | Consumer | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	968		1,705		1,028
Noncovered Loans | 90 Days or Greater Past Due | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	17,885		18,947		20,463
Noncovered Loans | 90 Days or Greater Past Due | Construction and Land Development | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	1,271		797		862
Noncovered Loans | 90 Days or Greater Past Due | Residential Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	11,988		12,993		13,388
Noncovered Loans | 90 Days or Greater Past Due | Revolving Mortgage | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	3,591		3,879		4,486
Noncovered Loans | 90 Days or Greater Past Due | Consumer | Non-Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered loans and leases	$ 1,035		$ 1,278		$ 1,727

[1] Unaudited

[2] Derived from 2012 Annual Report on Form 10-K.