Loans and Credit Quality (Details 8) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			$ 3,929,556
Loans and Leases Receivable, Net Reported Amount, Covered	381,810		361,003
NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	10,791,669		3,929,556	3,926,230
Loans and Leases Receivable, Net Amount	10,791,669		3,869,315
Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	398,436		382,796
Loans And Leases Net Of Discounts Covered	398,471		382,796
Loans and Leases Receivable, Gross, Carrying Amount, Covered	436,495		428,251	494,389
Loan Discounts	(38,059)		(45,455)
Loans and Leases Receivable, Allowance, Covered	(16,626)	(21,200)	(21,793)	(27,397)	(29,303)	(26,069)
Loans and Leases Receivable, Net Reported Amount, Covered	398,436		361,003
Equipment Finance Commercial Financing Receivable [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			273,483
Equipment Finance Commercial Financing Receivable [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	932,554		273,483
SBA 7(a) Financing Receivable [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			28,641
SBA 7(a) Financing Receivable [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	42,333		28,641
Hospitality [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			180,553
Hospitality [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	549,306		180,553
SBA 504 Loans [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			45,166
SBA 504 Loans [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	346,398		45,166
Real Estate Other Class [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			2,196,388
Real Estate Other Class [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	4,340,748		2,196,388
Mortgage Loans on Real Estate [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	5,601,020		2,795,998
Loans and Leases Receivable, Net Amount			2,422,107
Loans And Leases Net Of Discounts Covered	359,160		371,134
Mortgage Loans on Real Estate [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	5,236,452		2,422,107	2,559,639
Loans and Leases Receivable, Net Amount	5,236,452
Mortgage Loans on Real Estate [Member] | Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	395,500		412,791
Loans and Leases Receivable, Net Amount	359,130		371,134
Real Estate Construction [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	310,534		219,517
Loans and Leases Receivable, Net Amount			207,779
Loans And Leases Net Of Discounts Covered	10,035		10,427
Real Estate Construction [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	298,477		207,779	197,776
Loans and Leases Receivable, Net Amount	298,477
Real Estate Construction [Member] | Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	10,763		12,015
Loans and Leases Receivable, Net Amount	10,030		10,427
Commercial Portfolio Segment [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	5,225,694		1,242,750
Loans and Leases Receivable, Net Amount			1,244,785
Loans And Leases Net Of Discounts Covered	28,939		974
Commercial Portfolio Segment [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	5,193,735		1,244,785	1,140,219
Loans and Leases Receivable, Net Amount	5,193,735
Commercial Portfolio Segment [Member] | Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	29,824		3,021
Loans and Leases Receivable, Net Amount	28,940		974
Consumer Portfolio Segment [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	63,276		55,070
Loans and Leases Receivable, Net Amount			54,885
Loans And Leases Net Of Discounts Covered	337		261
Consumer Portfolio Segment [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			54,885	28,596
Loans and Leases Receivable, Net Amount	63,005
Consumer Portfolio Segment [Member] | Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	408		424
Loans and Leases Receivable, Net Amount	336		261
Residential Real Estate Construction Financing Receivable [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			58,881
Residential Real Estate Construction Financing Receivable [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	71,919		58,881
Commercial Real Estate Construction Financing Receivable [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			148,898
Commercial Real Estate Construction Financing Receivable [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	226,558		148,898
Collateralized Loan Obligations [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			586,481
Collateralized Loan Obligations [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	446,222		586,481
Unsecured Commercial Member [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			153,752
Unsecured Commercial Member [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	145,497		153,752
Asset Based [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			202,428
Asset Based [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	1,488,212		202,428
Cash Flow [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			0
Cash Flow [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	2,138,917		0
Nonperforming Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	96,802		46,774
Nonperforming Financing Receivable [Member] | Equipment Finance Commercial Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	10,576		632
Nonperforming Financing Receivable [Member] | SBA 7(a) Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	4,096		3,037
Nonperforming Financing Receivable [Member] | Hospitality [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	6,552		6,723
Nonperforming Financing Receivable [Member] | SBA 504 Loans [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	8,032		2,602
Nonperforming Financing Receivable [Member] | Real Estate Other Class [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	28,098		18,648
Nonperforming Financing Receivable [Member] | Mortgage Loans on Real Estate [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			27,973
Nonperforming Financing Receivable [Member] | Mortgage Loans on Real Estate [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	42,682
Nonperforming Financing Receivable [Member] | Real Estate Construction [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			3,219
Nonperforming Financing Receivable [Member] | Real Estate Construction [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	3,664
Nonperforming Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			15,188
Nonperforming Financing Receivable [Member] | Commercial Portfolio Segment [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	46,908
Nonperforming Financing Receivable [Member] | Consumer Portfolio Segment [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross			394
Nonperforming Financing Receivable [Member] | Consumer Portfolio Segment [Member] | NonCovered [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	3,548
Nonperforming Financing Receivable [Member] | Residential Real Estate Construction Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	927		389
Nonperforming Financing Receivable [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	2,737		2,830
Nonperforming Financing Receivable [Member] | Collateralized Loan Obligations [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	11,247		9,991
Nonperforming Financing Receivable [Member] | Unsecured Commercial Member [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	322		458
Nonperforming Financing Receivable [Member] | Asset Based [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	4,874		1,070
Nonperforming Financing Receivable [Member] | Cash Flow [Member] | Non Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	15,793		0
Performing Financing Receivable [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	10,694,867		3,882,782
Performing Financing Receivable [Member] | Equipment Finance Commercial Financing Receivable [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	921,978		272,851
Performing Financing Receivable [Member] | SBA 7(a) Financing Receivable [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	38,237		25,604
Performing Financing Receivable [Member] | Hospitality [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	542,754		173,830
Performing Financing Receivable [Member] | SBA 504 Loans [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	338,366		42,564
Performing Financing Receivable [Member] | Real Estate Other Class [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	4,312,650		2,177,740
Performing Financing Receivable [Member] | Mortgage Loans on Real Estate [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	5,193,770		2,394,134
Performing Financing Receivable [Member] | Real Estate Construction [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	294,813		204,560
Performing Financing Receivable [Member] | Commercial Portfolio Segment [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	5,146,827		1,229,597
Performing Financing Receivable [Member] | Consumer Portfolio Segment [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	59,457		54,491
Performing Financing Receivable [Member] | Residential Real Estate Construction Financing Receivable [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	70,992		58,492
Performing Financing Receivable [Member] | Commercial Real Estate Construction Financing Receivable [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	223,821		146,068
Performing Financing Receivable [Member] | Collateralized Loan Obligations [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	434,975		576,490
Performing Financing Receivable [Member] | Unsecured Commercial Member [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	145,175		153,294
Performing Financing Receivable [Member] | Asset Based [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	1,483,338		201,358
Performing Financing Receivable [Member] | Cash Flow [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross	$ 2,123,124		$ 0