Loans and Leases (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Receivables [Abstract]
Loans and leases, deferred fees and costs	$ 71,800	$ 84,700
Discounts on acquired loans	552,500	6,100
Direct financing lease, interest income	18,800	18,800
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans pledged to secure borrowings	3,782,280
Loans and leases, deferred fees and costs	71,800	84,700
Discounts on acquired loans	552,500	6,100
Direct financing lease, interest income	18,800	18,800
Carrying value of loans and leases sold	743,900	142,300
Carrying value of loans sold, non-relationship jumbo	666,300
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, before allowance for credit loss	331,900
Financing receivable, after allowance for credit loss	300,200
Asset Pledged as Collateral [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans pledged to secure borrowings	$ 21,200,000
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	$ 154,900	86,800
SBA Loans | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Line Items]
Carrying value of loans and leases sold	$ 77,600	$ 105,300