Loans and Leases Nonaccrual (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	$ 173,193	$ 151,059	$ 151,059
Financing Receivable, Nonaccrual, No Allowance	99,292		54,926
Commercial Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	91,375		76,504
Financing Receivable, Nonaccrual, No Allowance	37,083		20,460
Commercial Portfolio Segment [Member] | Commercial non-mortgage
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	67,542	59,369	59,369
Financing Receivable, Nonaccrual, No Allowance	29,385		13,584
Commercial Portfolio Segment [Member] | Asset-based
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	138	139	139
Financing Receivable, Nonaccrual, No Allowance	0		0
Commercial Portfolio Segment [Member] | Commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	15,902	11,563	11,563
Financing Receivable, Nonaccrual, No Allowance	3,817		4,717
Commercial Portfolio Segment [Member] | 6172 Finance Lessors
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	7,793	5,433	5,433
Financing Receivable, Nonaccrual, No Allowance	3,881		2,159
Consumer Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	81,818		74,555
Financing Receivable, Nonaccrual, No Allowance	62,209		34,466
Consumer Portfolio Segment [Member] | Residential
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	46,579	43,193	43,193
Financing Receivable, Nonaccrual, No Allowance	34,913		19,271
Consumer Portfolio Segment [Member] | Home equity
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	34,022	$ 30,170	30,170
Financing Receivable, Nonaccrual, No Allowance	27,230		15,195
Consumer Portfolio Segment [Member] | Other consumer
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	1,217		1,192
Financing Receivable, Nonaccrual, No Allowance	$ 66		$ 0