Loans and Leases (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans pledged to secure borrowings	$ 5,074,940
Loans and leases, deferred fees and costs	69,800		$ 71,800
Discounts on acquired loans	522,700		552,500
Interest income recognized on leases	4,900	$ 4,700
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	316,100		331,900
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	288,800		300,200
Asset Pledged as Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans pledged to secure borrowings	$ 21,100,000
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]
Interest Receivable	$ 157,800		$ 154,900