Amount of loans purchased with credit deterioration during the period.

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The premium percentage on loans purchased.

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- Definition

Percentage of allowance for credit loss to total financing receivable outstanding.

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Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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Amount, after allowance for credit loss, of accrued interest on financing receivable.

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Indicates line item in statement of financial position that includes accrued interest, after allowance for credit loss, on financing receivable.

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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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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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The cash outflow for the purchase of loan receivable arising from the financing of goods and services.

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Allowance for Credit Losses and Credit Quality of Loans, Summary (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Allowance for Credit Losses [Abstract]
Allowance for credit losses	$ 100,250	$ 100,800	$ 90,000	$ 92,000
Percentage of allowance of credit losses	1.21%	1.24%
Recorded total loans	$ 8,264,578	$ 8,150,147
Loans purchased with credit deterioration	0	0
Amount of loans purchased	0
Allowance for credit losses on loans purchased		3,200
ASU 2022-02 [Member]
Allowance for Credit Losses [Abstract]
Allowance for credit losses	100,250	100,152
Loans [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member] \| ASU 2022-02 [Member]
Allowance for Credit Losses [Abstract]
Allowance for credit losses		(600)
Accrued Interest Receivable [Member]
Allowance for Credit Losses [Abstract]
Allowance for credit losses	0	0
AIR on loans	$ 25,400	$ 25,000
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Other Assets	Other Assets
PPP [Member] \| Maximum [Member]
Allowance for Credit Losses [Abstract]
Recorded total loans	$ 1,000
Residential [Member]
Allowance for Credit Losses [Abstract]
Allowance for credit losses			17,852	18,806
Recorded total loans	2,105,482	$ 2,114,495
Amount of loans purchased		$ 11,500
Premium on loans purchased		1.53%
Residential [Member] \| ASU 2022-02 [Member]
Allowance for Credit Losses [Abstract]
Allowance for credit losses	15,390	$ 14,539
Consumer Loans [Member]
Allowance for Credit Losses [Abstract]
Allowance for credit losses			$ 43,591	$ 44,253
Recorded total loans	2,163,218	2,099,087
Amount of loans purchased		50,100
Consumer Loans [Member] \| ASU 2022-02 [Member]
Allowance for Credit Losses [Abstract]
Allowance for credit losses	$ 48,820	$ 50,951