Loans and Leases (Loans and Leases Sold) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	$ 105,148	$ 241,315
Commercial Real Estate | Non-owner Occupied Term, net
Financing Receivable, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	26,209	40,496
Commercial Real Estate | Owner Occupied Term, net
Financing Receivable, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	30,945	25,454
Commercial Real Estate | Multifamily, net
Financing Receivable, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	0	13,849
Commercial | Term, net
Financing Receivable, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	47,427	38,227
Commercial | LOC & Other, net
Financing Receivable, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	159	1,619
Commercial | Leases and Equipment Finance, net
Financing Receivable, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	43	54,499
Residential | Mortgage, net
Financing Receivable, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	365	1,849
Consumer & Other, Net
Financing Receivable, Past Due [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	$ 0	$ 65,322