Loans and Leases - Allowance for Loan and Lease Losses and Reserve for Unfunded Loan Commitments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Receivables [Abstract]
Balance, beginning of period	$ 197,398	$ 292,445	$ 200,564	$ 348,181
Reserve for Unfunded Loan Commitments, Balance, beginning of period	75,071	90,571	73,071	85,571
Allowance for Credit Losses, Balance, beginning of period	272,469	383,016	273,635	433,752
Allowance for Loan and Lease Losses, Charge-offs	(2,799)	(816)	(6,033)	(4,804)
Reserve for Unfunded Loan Commitments, Charge-offs	0	0	0	0
Allowance for Credit Losses, Charge-offs	(2,799)	(816)	(6,033)	(4,804)
Allowance for Loan and Lease Loss, Recoveries	4,106	5,971	6,174	7,223
Reserve for Unfunded Loan Commitments, Recoveries	0	0	0	0
Allowance for Credit Losses, Recoveries	4,106	5,971	6,174	7,223
Net (charge-offs) recoveries	1,307	5,155	141	2,419
Reserve for Unfunded Loan Commitments, Net charge-offs	0	0	0	0
Allowance For Credit Losses, Net charge-offs	1,307	5,155	141	2,419
Provision for Loan, Leases and Unfunded Loan Commitments	10,000	(88,000)	10,000	(136,000)
Provision for credit losses	(10,000)	(72,000)	(12,000)	(125,000)
Reserve for Unfunded Commitments, Provision (negative provision)	20,000	16,000	22,000	(11,000)
Balance, end of period	188,705	225,600	188,705	225,600
Reserve for Unfunded Loan Commitments, Balance, end of period	95,071	74,571	95,071	74,571
Allowance for Credit Losses, Balance, end of period	$ 283,776	$ 300,171	$ 283,776	$ 300,171