Loans and Leases (Details 4) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Nonaccrual	$ 91,163	$ 92,353
Impaired Financing Receivable, Recorded Investment		104,610
Impaired Financing Receivable, Interest Income, Accrual Method		734	$ 1,052
Impaired Financing Receivable, Unpaid Principal Balance		203,934
Impaired Financing Receivable, Related Allowance		6,197
Impaired Financing Receivable, Average Recorded Investment		79,462	81,927
Financing Receivable, Nonaccrual, Interest Income	5,576
Mortgages [Member]
Impaired Financing Receivable, Recorded Investment		30,989
Impaired Financing Receivable, Interest Income, Accrual Method		536	564
Impaired Financing Receivable, Unpaid Principal Balance		48,173
Impaired Financing Receivable, Related Allowance		231
Impaired Financing Receivable, Average Recorded Investment		25,630	26,840
Construction
Impaired Financing Receivable, Recorded Investment		1,834
Impaired Financing Receivable, Interest Income, Accrual Method		118	383
Impaired Financing Receivable, Unpaid Principal Balance		1,887
Impaired Financing Receivable, Related Allowance		0
Impaired Financing Receivable, Average Recorded Investment		1,834	5,460
Consumer Loan
Impaired Financing Receivable, Recorded Investment		565
Impaired Financing Receivable, Interest Income, Accrual Method		5	7
Impaired Financing Receivable, Unpaid Principal Balance		728
Impaired Financing Receivable, Related Allowance		0
Impaired Financing Receivable, Average Recorded Investment		413	844
Commercial Portfolio Segment [Member]
Impaired Financing Receivable, Recorded Investment		71,222
Impaired Financing Receivable, Interest Income, Accrual Method		75	98
Impaired Financing Receivable, Unpaid Principal Balance		153,146
Impaired Financing Receivable, Related Allowance		5,966
Impaired Financing Receivable, Average Recorded Investment		51,585	48,783
Mortgages [Member]
Financing Receivable, Nonaccrual	45,557	20,824
Financing Receivable, Nonaccrual, Interest Income	524
Commercial Portfolio Segment [Member]
Financing Receivable, Nonaccrual	44,902	70,672
Financing Receivable, Nonaccrual, Interest Income	5,052
Commercial Portfolio Segment [Member] \| Asset Based [Member]
Financing Receivable, Nonaccrual	2,679	30,162
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		30,162
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		52,139
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		28,829	32,324
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		0	0
Financing Receivable, Nonaccrual With An Allowance Recorded	2,128
Financing Receivable Nonaccrual Interest Income, With Allowance	0
Financing Receivable, Nonaccrual, No Allowance	551
Financing Receivable Nonaccrual Interest Income	0
Commercial Portfolio Segment [Member] \| Venture Capital Loans [Member]
Financing Receivable, Nonaccrual	1,980	12,916
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		5,270
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		44,468
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		4,735	689
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		0	0
Impaired Financing Receivable, Related Allowance		2,581
Impaired Financing Receivable, with Related Allowance, Recorded Investment		7,811
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		9,106
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		7,008	9,449
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		0	0
Financing Receivable, Nonaccrual With An Allowance Recorded	1,980
Financing Receivable Nonaccrual Interest Income, With Allowance	0
Commercial Portfolio Segment [Member] \| Other Commercial [Member]
Financing Receivable, Nonaccrual	40,243	27,594
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		13,174
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		32,242
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		7,303	6,286
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		75	98
Impaired Financing Receivable, Related Allowance		3,385
Impaired Financing Receivable, with Related Allowance, Recorded Investment		14,805
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		15,191
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		3,710	35
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		0	0
Financing Receivable, Nonaccrual With An Allowance Recorded	2,438
Financing Receivable Nonaccrual Interest Income, With Allowance	0
Financing Receivable, Nonaccrual, No Allowance	37,805
Financing Receivable Nonaccrual Interest Income	5,052
Real Estate Construction [Member]
Financing Receivable, Nonaccrual	315	364
Financing Receivable, Nonaccrual, Interest Income	0
Real Estate Construction [Member] \| Commercial Real Estate Construction Loan Receivable [Member]
Financing Receivable, Nonaccrual	315	364
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		1,834
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		1,887
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		1,834	5,460
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		118	383
Financing Receivable, Nonaccrual, No Allowance	315
Financing Receivable Nonaccrual Interest Income	0
Consumer Loan
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		565
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		728
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		413	844
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		5	7
Consumer Portfolio Segment [Member]
Financing Receivable, Nonaccrual	389	493
Financing Receivable, Nonaccrual, Interest Income	0
Financing Receivable, Nonaccrual With An Allowance Recorded	389
Financing Receivable Nonaccrual Interest Income, With Allowance	0
Commercial Real Estate [Member] \| Mortgages [Member]
Financing Receivable, Nonaccrual	43,731	18,346
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		21,264
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		36,247
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		16,252	15,714
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		230	236
Impaired Financing Receivable, Related Allowance		71
Impaired Financing Receivable, with Related Allowance, Recorded Investment		479
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		479
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		479	1,736
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		31	72
Financing Receivable, Nonaccrual With An Allowance Recorded	78
Financing Receivable Nonaccrual Interest Income, With Allowance	0
Financing Receivable, Nonaccrual, No Allowance	43,653
Financing Receivable Nonaccrual Interest Income	524
Residential Real Estate [Member] \| Mortgages [Member]
Financing Receivable, Nonaccrual	1,826	2,478
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		7,244
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		9,442
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		6,898	7,191
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		217	181
Impaired Financing Receivable, Related Allowance		160
Impaired Financing Receivable, with Related Allowance, Recorded Investment		2,002
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		2,005
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		2,001	2,199
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		$ 58	$ 75
Financing Receivable, Nonaccrual With An Allowance Recorded	1,260
Financing Receivable Nonaccrual Interest Income, With Allowance	0
Financing Receivable, Nonaccrual, No Allowance	566
Financing Receivable Nonaccrual Interest Income	$ 0

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