Amount of direct write-downs of accounts receivable charged against the allowance.

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Loans and Allowance for Credit Losses (ALLL Rollforward) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Jan. 01, 2023
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	$ 158,792	$ 125,443	$ 147,946	$ 126,457
Financing Receivable, Allowance for Credit Loss	(166,833)	(130,239)	(166,833)	(130,239)
Provision for credit losses	15,517	23,996	35,305	31,826
Charge-offs	(9,136)	(20,979)	(17,035)	(31,650)
Recoveries	2,982	2,568	5,926	4,779
Allowance for loan and lease losses, end of period	166,833	130,239	166,833	130,239
Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss					$ 1,794
Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance				126,457
Financing Receivable, Allowance for Credit Loss					(146,152)
Residential Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	11,797	8,957	11,741	9,187
Financing Receivable, Allowance for Credit Loss	(8,887)	(9,010)	(8,887)	(9,010)
Charge-offs	0	(412)	0	(412)
Recoveries	2	17	5	43
Allowance for loan and lease losses, end of period	8,887	9,010	8,887	9,010
Residential Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss					117
Residential Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance				9,187
Financing Receivable, Allowance for Credit Loss					(11,624)
Commercial Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	146,995	116,486	136,205	117,270
Financing Receivable, Allowance for Credit Loss	(157,946)	(121,229)	(157,946)	(121,229)
Charge-offs	(9,136)	(20,567)	(17,035)	(31,238)
Recoveries	2,980	2,551	5,921	4,736
Allowance for loan and lease losses, end of period	157,946	121,229	157,946	121,229
Commercial Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss					1,677
Commercial Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance				117,270
Financing Receivable, Allowance for Credit Loss					$ (134,528)
Funded Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Provision for credit losses	14,195	23,207	31,790	30,653
Funded Loans [Member] \| Residential Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Provision for credit losses	(2,912)	448	(2,742)	192
Funded Loans [Member] \| Commercial Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Provision for credit losses	$ 17,107	$ 22,759	$ 34,532	$ 30,461