Loans and Leases (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Receivables [Abstract]
Loans and leases, deferred fees and costs	$ 79,800		$ 79,800		$ 84,700
Discounts on acquired loans	656,900		656,900		6,100
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans pledged to secure borrowings	4,391,953		4,391,953
Transfer of loans held for sale to loans held for investment			118,100
Interest income recognized on leases	4,700	$ 4,700	9,400	$ 9,800
Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Carrying value of loans and leases sold			372,800
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	425,400		425,400
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	381,600		381,600
Asset Pledged as Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans pledged to secure borrowings	$ 20,700,000		$ 20,700,000
Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Lease term	3 years		3 years
Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Lease term	5 years		5 years
Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Interest Receivable	$ 140,500		$ 140,500		$ 86,800