Loans and Leases (Loans and Leases Sold) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	$ 39,297	$ 18,636	$ 54,376	$ 39,035
Commercial real estate | Non-owner occupied term, net
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	2,943	763	7,762	5,154
Commercial real estate | Owner occupied term, net
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	8,261	8,542	12,971	14,092
Commercial | Term, net
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	10,522	9,331	15,963	19,789
Commercial | Leases & equipment finance, net
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	17,571	0	17,571	0
Residential | Mortgage, net
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	$ 0	$ 0	$ 109	$ 0