Loans (Past Due Financing Receivables Table) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
Consumer Loans Guaranteed by Government	$ 2,100,000	$ 3,400,000
FDIC Indemnification Asset	61,827,000	113,734,000
Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59		36,548,000
Days Past Due 60 to 89		13,635,000
Days Past Due more than 90		28,754,000
Total Past Due		78,937,000
Current		8,652,722,000
Total Loans	10,213,387,000	8,731,659,000
More than 90 days Past Due and Accruing		9,417,000
Nonaccrual Loans		36,687,000
Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	52,585,000
Days Past Due 60 to 89	10,926,000
Days Past Due more than 90	35,888,000
Total Past Due	99,399,000
Current	10,113,988,000
Total Loans	10,213,387,000
More than 90 days Past Due and Accruing	11,176,000
Nonaccrual Loans	42,203,000
Acquired Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	32,793,000
Days Past Due 60 to 89	13,578,000
Days Past Due more than 90	45,133,000
Total Past Due	91,504,000
Current	3,404,111,000
Total Loans	3,495,615,000
More than 90 days Past Due and Accruing	4,148,000
Nonaccrual Loans	4,007,000
Covered Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
FDIC Indemnification Asset	61,827,000
Covered Loans Loss Share Receivable		113,700,000
Summary of loans by portfolio type
Days Past Due 30 to 59	13,922,000	17,184,000
Days Past Due 60 to 89	9,881,000	25,086,000
Days Past Due more than 90	143,238,000	240,864,000
Total Past Due	167,041,000	283,134,000
Current	363,102,000	622,257,000
Total Loans	530,143,000	905,391,000
Covered Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
FDIC Indemnification Asset		113,734,000
Commercial and Industrial Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59		3,814,000
Days Past Due 60 to 89		1,986,000
Days Past Due more than 90		3,571,000
Total Past Due		9,371,000
Current		3,297,155,000
Total Loans		3,306,526,000
More than 90 days Past Due and Accruing		104,000
Nonaccrual Loans		5,255,000
Commercial and Industrial Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	8,941,000
Days Past Due 60 to 89	994,000
Days Past Due more than 90	10,622,000
Total Past Due	20,557,000
Current	4,119,010,000
Total Loans	4,139,567,000
More than 90 days Past Due and Accruing	151,000
Nonaccrual Loans	11,323,000
Commercial and Industrial Financing Receivable | Acquired Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	1,295,000
Days Past Due 60 to 89	862,000
Days Past Due more than 90	3,744,000
Total Past Due	5,901,000
Current	788,178,000
Total Loans	794,079,000
More than 90 days Past Due and Accruing	40,000
Nonaccrual Loans	795,000
Commercial and Industrial Financing Receivable | Covered Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	836,000	931,000
Days Past Due 60 to 89	1,489,000	981,000
Days Past Due more than 90	12,957,000	24,111,000
Total Past Due	15,282,000	26,023,000
Current	60,955,000	102,486,000
Total Loans	76,237,000	128,509,000
Commercial Real Estate Other Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59		4,181,000
Days Past Due 60 to 89		4,530,000
Days Past Due more than 90		11,535,000
Total Past Due		20,246,000
Current		2,204,170,000
Total Loans		2,224,416,000
More than 90 days Past Due and Accruing		382,000
Nonaccrual Loans		15,780,000
Commercial Real Estate Other Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	4,507,000
Days Past Due 60 to 89	2,400,000
Days Past Due more than 90	9,688,000
Total Past Due	16,595,000
Current	2,153,192,000
Total Loans	2,169,787,000
More than 90 days Past Due and Accruing	460,000
Nonaccrual Loans	14,229,000
Commercial Real Estate Other Receivable | Acquired Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	5,603,000
Days Past Due 60 to 89	5,281,000
Days Past Due more than 90	26,366,000
Total Past Due	37,250,000
Current	881,395,000
Total Loans	918,645,000
More than 90 days Past Due and Accruing	403,000
Nonaccrual Loans	651,000
Commercial Real Estate Other Receivable | Covered Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	2,855,000	4,130,000
Days Past Due 60 to 89	3,443,000	15,019,000
Days Past Due more than 90	103,077,000	172,444,000
Total Past Due	109,375,000	191,593,000
Current	164,219,000	348,002,000
Total Loans	273,594,000	539,595,000
Commercial Real Estate Construction Financing Receivable | Originated Loans
Summary of loans by portfolio type
Total Loans		335,547,000
Commercial Real Estate Construction Financing Receivable | Originated Loans
Summary of loans by portfolio type
Total Loans	338,925,000
Commercial Real Estate Construction Financing Receivable | Acquired Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	2,675,000
Total Past Due	2,675,000
Current	10,571,000
Total Loans	13,246,000
Commercial Real Estate Construction Financing Receivable | Covered Loans
Summary of loans by portfolio type
Total Loans	26,029,000	50,333,000
Commercial Construction Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59		981,000
Days Past Due 60 to 89		0
Days Past Due more than 90		597,000
Total Past Due		1,578,000
Current		333,969,000
Total Loans		335,547,000
More than 90 days Past Due and Accruing		0
Nonaccrual Loans		731,000
Commercial Construction Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	351,000
Days Past Due 60 to 89	21,000
Days Past Due more than 90	66,000
Total Past Due	438,000
Current	338,487,000
Total Loans	338,925,000
More than 90 days Past Due and Accruing	0
Nonaccrual Loans	122,000
Commercial Construction Financing Receivable | Covered Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	2,191,000	589,000
Days Past Due 60 to 89	1,917,000	7,925,000
Days Past Due more than 90	20,388,000	34,314,000
Total Past Due	24,496,000	42,828,000
Current	1,533,000	7,505,000
Total Loans	26,029,000	50,333,000
Commercial Leases Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59		6,000
Days Past Due 60 to 89		0
Days Past Due more than 90		0
Total Past Due		6,000
Current		139,230,000
Total Loans		139,236,000
More than 90 days Past Due and Accruing		0
Nonaccrual Loans		0
Commercial Leases Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	902,000
Days Past Due 60 to 89	0
Days Past Due more than 90	0
Total Past Due	902,000
Current	238,649,000
Total Loans	239,551,000
More than 90 days Past Due and Accruing	0
Nonaccrual Loans	0
Commercial Leases Financing Receivable | Acquired Loans
Summary of loans by portfolio type
Total Loans	0
Commercial Leases Financing Receivable | Covered Loans
Summary of loans by portfolio type
Total Loans	0	0
Consumer Installment Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59		11,722,000
Days Past Due 60 to 89		3,193,000
Days Past Due more than 90		5,639,000
Total Past Due		20,554,000
Current		1,307,704,000
Total Loans		1,328,258,000
More than 90 days Past Due and Accruing		4,942,000
Nonaccrual Loans		2,914,000
Consumer Installment Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	15,433,000
Days Past Due 60 to 89	4,050,000
Days Past Due more than 90	4,462,000
Total Past Due	23,945,000
Current	1,703,980,000
Total Loans	1,727,925,000
More than 90 days Past Due and Accruing	3,735,000
Nonaccrual Loans	3,681,000
Consumer Installment Financing Receivable | Acquired Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	14,528,000
Days Past Due 60 to 89	4,076,000
Days Past Due more than 90	3,354,000
Total Past Due	21,958,000
Current	982,611,000
Total Loans	1,004,569,000
More than 90 days Past Due and Accruing	2,263,000
Nonaccrual Loans	679,000
Consumer Installment Financing Receivable | Covered Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	33,000	1,000
Days Past Due 60 to 89	0	65,000
Days Past Due more than 90	0	21,000
Total Past Due	33,000	87,000
Current	6,130,000	8,102,000
Total Loans	6,163,000	8,189,000
Consumer Home Equity Lines Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59		1,584,000
Days Past Due 60 to 89		880,000
Days Past Due more than 90		1,227,000
Total Past Due		3,691,000
Current		802,387,000
Total Loans		806,078,000
More than 90 days Past Due and Accruing		475,000
Nonaccrual Loans		1,557,000
Consumer Home Equity Lines Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	1,864,000
Days Past Due 60 to 89	918,000
Days Past Due more than 90	965,000
Total Past Due	3,747,000
Current	916,319,000
Total Loans	920,066,000
More than 90 days Past Due and Accruing	418,000
Nonaccrual Loans	1,819,000
Consumer Home Equity Lines Financing Receivable | Acquired Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	4,774,000
Days Past Due 60 to 89	1,933,000
Days Past Due more than 90	3,606,000
Total Past Due	10,313,000
Current	284,111,000
Total Loans	294,424,000
More than 90 days Past Due and Accruing	1,039,000
Nonaccrual Loans	1,300,000
Consumer Home Equity Lines Financing Receivable | Covered Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	544,000	1,528,000
Days Past Due 60 to 89	1,467,000	654,000
Days Past Due more than 90	1,651,000	2,211,000
Total Past Due	3,662,000	4,393,000
Current	93,780,000	112,832,000
Total Loans	97,442,000	117,225,000
Consumer Credit Card Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59		969,000
Days Past Due 60 to 89		558,000
Days Past Due more than 90		954,000
Total Past Due		2,481,000
Current		143,906,000
Total Loans		146,387,000
More than 90 days Past Due and Accruing		438,000
Nonaccrual Loans		598,000
Consumer Credit Card Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	729,000
Days Past Due 60 to 89	471,000
Days Past Due more than 90	735,000
Total Past Due	1,935,000
Current	146,378,000
Total Loans	148,313,000
More than 90 days Past Due and Accruing	404,000
Nonaccrual Loans	558,000
Consumer Residential Mortgages Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59		13,291,000
Days Past Due 60 to 89		2,488,000
Days Past Due more than 90		5,231,000
Total Past Due		21,010,000
Current		424,201,000
Total Loans		445,211,000
More than 90 days Past Due and Accruing		3,076,000
Nonaccrual Loans		9,852,000
Consumer Residential Mortgages Financing Receivable | Originated Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	19,858,000
Days Past Due 60 to 89	2,072,000
Days Past Due more than 90	9,350,000
Total Past Due	31,280,000
Current	497,973,000
Total Loans	529,253,000
More than 90 days Past Due and Accruing	6,008,000
Nonaccrual Loans	10,471,000
Consumer Residential Mortgages Financing Receivable | Acquired Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	3,918,000
Days Past Due 60 to 89	1,426,000
Days Past Due more than 90	8,063,000
Total Past Due	13,407,000
Current	457,245,000
Total Loans	470,652,000
More than 90 days Past Due and Accruing	403,000
Nonaccrual Loans	582,000
Consumer Residential Mortgages Financing Receivable | Covered Loans
Summary of loans by portfolio type
Days Past Due 30 to 59	7,463,000	10,005,000
Days Past Due 60 to 89	1,565,000	442,000
Days Past Due more than 90	5,165,000	7,763,000
Total Past Due	14,193,000	18,210,000
Current	36,485,000	43,330,000
Total Loans	$ 50,678,000	$ 61,540,000