Loans and Leases - Allowance for Loan and Lease Losses and Reserve for Unfunded Loan Commitments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Receivables [Abstract]
Balance, beginning of period	$ 200,564	$ 348,181
Reserve for Unfunded Loan Commitments, Balance, beginning of period	73,071	85,571
Allowance for Credit Losses, Balance, beginning of period	273,635	433,752
Allowance for Loan and Lease Losses, Charge-offs	(3,234)	(3,988)
Reserve for Unfunded Loan Commitments, Charge-offs	0	0
Allowance for Credit Losses, Charge-offs	(3,234)	(3,988)
Allowance for Loan and Lease Loss, Recoveries	2,068	1,252
Reserve for Unfunded Loan Commitments, Recoveries	0	0
Allowance for Credit Losses, Recoveries	2,068	1,252
Net (charge-offs) recoveries	(1,166)	(2,736)
Reserve for Unfunded Loan Commitments, Net charge-offs	0	0
Allowance For Credit Losses, Net charge-offs	(1,166)	(2,736)
Provision	(2,000)	(53,000)
Reserve for Unfunded Commitments, Provision (negative provision)	2,000	5,000
Balance, end of period	197,398	292,445
Reserve for Unfunded Loan Commitments, Balance, end of period	75,071	90,571
Allowance for Credit Losses, Balance, end of period	$ 272,469	$ 383,016