Loans and Leases (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) numberOfLoans	Dec. 31, 2020 USD ($) numberOfLoans
Receivables [Abstract]
Loans and leases, deferred fees and costs	$ 57,500	$ 38,600
Number of PPP Loans | numberOfLoans	4,000	15,000
Total PPP Loan Amount	$ 380,400	$ 1,800,000
PPP Loan Fees, Net of Costs	11,600	26,900
Discounts on acquired loans	9,800	17,900
Total loans pledged to secure borrowings	14,500,000
Direct Financing Lease, Interest Income	23,100	26,500
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest receivable	70,537	83,804
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	$ 230,952	105,148
Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Lease term	3 years
Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Lease term	5 years
Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest receivable	$ 60,100	74,800
SBA Loans | Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable held-for-sale, reconciliation to cash flow, deductions from held-for-sale	$ 150,100	$ 96,700