Loans Part 4 (Details) (USD $) In Thousands	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Impaired receivables [Abstract]
Unpaid principal balance	$ 254,963	$ 254,963		$ 301,032
Recorded investment, total	176,331	176,331	292,679	202,503
Recorded investement, with no allowance	146,331	146,331	194,782	169,005
Recorded investement, with allowance	30,000	30,000	97,897	33,498
Recorded investement, related allowance	6,683	6,683	19,578	7,132
Recorded investement, average recorded investment	186,890	189,420	319,655	262,368
Recorded investement, interest income recognized	0	0
Commercial Loan [Member]
Impaired receivables [Abstract]
Unpaid principal balance	84,070	84,070		67,546
Recorded investment, total	53,162	53,162		38,322
Recorded investement, with no allowance	46,833	46,833		33,269
Recorded investement, with allowance	6,329	6,329		5,053
Recorded investement, related allowance	2,440	2,440		2,066
Recorded investement, average recorded investment	55,232	45,743
Recorded investement, interest income recognized	0	0
Commercial Loan [Member] | Commercial Energy Financing Receivable [Member]
Impaired receivables [Abstract]
Unpaid principal balance	345	345		559
Recorded investment, total	345	345		465
Recorded investement, with no allowance	345	345		404
Recorded investement, with allowance	0	0		61
Recorded investement, related allowance	0	0		60
Recorded investement, average recorded investment	380	405
Recorded investement, interest income recognized	0	0
Commercial Loan [Member] | Commercial Services Financing Receivable [Member]
Impaired receivables [Abstract]
Unpaid principal balance	26,441	26,441		28,579
Recorded investment, total	16,254	16,254		19,262
Recorded investement, with no allowance	15,525	15,525		15,985
Recorded investement, with allowance	729	729		3,277
Recorded investement, related allowance	273	273		1,227
Recorded investement, average recorded investment	15,987	17,758
Recorded investement, interest income recognized	0	0
Commercial Loan [Member] | Commercial Wholesale Retail Financing Receivables [Member]
Impaired receivables [Abstract]
Unpaid principal balance	31,770	31,770		14,717
Recorded investment, total	25,138	25,138		8,486
Recorded investement, with no allowance	22,751	22,751		7,562
Recorded investement, with allowance	2,387	2,387		924
Recorded investement, related allowance	1,742	1,742		684
Recorded investement, average recorded investment	27,775	16,812
Recorded investement, interest income recognized	0	0
Commercial Loan [Member] | Commercial Manufacturing Financing Receivable [Member]
Impaired receivables [Abstract]
Unpaid principal balance	9,259	9,259		5,811
Recorded investment, total	4,366	4,366		2,116
Recorded investement, with no allowance	2,012	2,012		2,116
Recorded investement, with allowance	2,354	2,354		0
Recorded investement, related allowance	259	259		0
Recorded investement, average recorded investment	4,456	3,241
Recorded investement, interest income recognized	0	0
Commercial Loan [Member] | Commercial Healthcare Financing Receivable [Member]
Impaired receivables [Abstract]
Unpaid principal balance	7,659	7,659		4,701
Recorded investment, total	5,962	5,962		3,534
Recorded investement, with no allowance	5,103	5,103		2,743
Recorded investement, with allowance	859	859		791
Recorded investement, related allowance	166	166		95
Recorded investement, average recorded investment	4,268	4,748
Recorded investement, interest income recognized	0	0
Commercial Loan [Member] | Commercial Integrated Food Services Financing Receivables [Member]
Impaired receivables [Abstract]
Unpaid principal balance	0	0		172
Recorded investment, total	0	0		13
Recorded investement, with no allowance	0	0		13
Recorded investement, with allowance	0	0		0
Recorded investement, related allowance	0	0		0
Recorded investement, average recorded investment	3	7
Recorded investement, interest income recognized	0	0
Commercial Loan [Member] | Commercial Other Commercial and Industrial [Member]
Impaired receivables [Abstract]
Unpaid principal balance	8,596	8,596		13,007
Recorded investment, total	1,097	1,097		4,446
Recorded investement, with no allowance	1,097	1,097		4,446
Recorded investement, with allowance	0	0		0
Recorded investement, related allowance	0	0		0
Recorded investement, average recorded investment	2,363	2,772
Recorded investement, interest income recognized	0	0
Commercial Real Estate [Member]
Impaired receivables [Abstract]
Unpaid principal balance	156,322	156,322		216,319
Recorded investment, total	110,363	110,363		150,366
Recorded investement, with no allowance	93,134	93,134		125,656
Recorded investement, with allowance	17,229	17,229		24,710
Recorded investement, related allowance	3,139	3,139		4,207
Recorded investement, average recorded investment	117,935	130,366
Recorded investement, interest income recognized	0	0
Commercial Real Estate [Member] | Commercial Real Estate Construction Financing Receivable [Member]
Impaired receivables [Abstract]
Unpaid principal balance	115,337	115,337		138,922
Recorded investment, total	76,265	76,265		99,579
Recorded investement, with no allowance	65,094	65,094		84,959
Recorded investement, with allowance	11,171	11,171		14,620
Recorded investement, related allowance	1,966	1,966		2,428
Recorded investement, average recorded investment	83,486	87,922
Recorded investement, interest income recognized	0	0
Commercial Real Estate [Member] | Commercial Real Estate Retail Financing Receivables [Member]
Impaired receivables [Abstract]
Unpaid principal balance	5,652	5,652		6,111
Recorded investment, total	4,642	4,642		4,978
Recorded investement, with no allowance	1,855	1,855		1,968
Recorded investement, with allowance	2,787	2,787		3,010
Recorded investement, related allowance	612	612		514
Recorded investement, average recorded investment	4,959	4,810
Recorded investement, interest income recognized	0	0
Commercial Real Estate [Member] | Commercial Real Estate Office Financing Receivables [Member]
Impaired receivables [Abstract]
Unpaid principal balance	14,749	14,749		25,702
Recorded investment, total	11,473	11,473		19,654
Recorded investement, with no allowance	9,713	9,713		18,798
Recorded investement, with allowance	1,760	1,760		856
Recorded investement, related allowance	207	207		106
Recorded investement, average recorded investment	13,051	15,564
Recorded investement, interest income recognized	0	0
Commercial Real Estate [Member] | Commercial Real Estate Multifamily Financing Receivables [Member]
Impaired receivables [Abstract]
Unpaid principal balance	5,381	5,381		24,368
Recorded investment, total	4,717	4,717		6,725
Recorded investement, with no allowance	4,717	4,717		6,129
Recorded investement, with allowance	0	0		596
Recorded investement, related allowance	0	0		115
Recorded investement, average recorded investment	3,309	5,721
Recorded investement, interest income recognized	0	0
Commercial Real Estate [Member] | Commercial Real Estate Industrial [Member]
Impaired receivables [Abstract]
Unpaid principal balance	0	0		4,087
Recorded investment, total	0	0		4,087
Recorded investement, with no allowance	0	0
Recorded investement, with allowance	0	0		4,087
Recorded investement, related allowance	0	0		723
Recorded investement, average recorded investment	0	2,044
Recorded investement, interest income recognized	0	0
Commercial Real Estate [Member] | Commercial Real Estate Other Real Estate Loans Financing Receivables [Member]
Impaired receivables [Abstract]
Unpaid principal balance	15,203	15,203		17,129
Recorded investment, total	13,266	13,266		15,343
Recorded investement, with no allowance	11,755	11,755		13,802
Recorded investement, with allowance	1,511	1,511		1,541
Recorded investement, related allowance	354	354		321
Recorded investement, average recorded investment	13,130	14,305
Recorded investement, interest income recognized	0	0
Residential Mortgage [Member]
Impaired receivables [Abstract]
Unpaid principal balance	12,122	12,122		15,258
Recorded investment, total	10,885	10,885		12,064
Recorded investement, with no allowance	5,016	5,016		8,574
Recorded investement, with allowance	5,869	5,869		3,490
Recorded investement, related allowance	989	989		781
Recorded investement, average recorded investment	11,479	11,475
Recorded investement, interest income recognized	0	0
Residential Mortgage [Member] | Residential Mortgage Permanent Mortgage Financing Receivables [Member]
Impaired receivables [Abstract]
Unpaid principal balance	12,122	12,122		15,258
Recorded investment, total	10,885	10,885		12,064
Recorded investement, with no allowance	5,016	5,016		8,574
Recorded investement, with allowance	5,869	5,869		3,490
Recorded investement, related allowance	989	989		781
Recorded investement, average recorded investment	11,479	11,475
Recorded investement, interest income recognized	0	0
Consumer Loan [Member]
Impaired receivables [Abstract]
Unpaid principal balance	2,449	2,449		1,909
Recorded investment, total	1,921	1,921		1,751
Recorded investement, with no allowance	1,348	1,348		1,506
Recorded investement, with allowance	573	573		245
Recorded investement, related allowance	115	115		78
Recorded investement, average recorded investment	2,244	1,836
Recorded investement, interest income recognized	0	0
Consumer Loan [Member] | Consumer Other Financing Receivable [Member]
Impaired receivables [Abstract]
Unpaid principal balance	2,449	2,449		1,909
Recorded investment, total	1,921	1,921		1,751
Recorded investement, with no allowance	1,348	1,348		1,506
Recorded investement, with allowance	573	573		245
Recorded investement, related allowance	115	115		78
Recorded investement, average recorded investment	2,244	1,836
Recorded investement, interest income recognized	$ 0	$ 0