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

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Commitments and Contingencies - Narrative (Details) $ in Thousands	Mar. 31, 2023 USD ($) depositRelationship	Jan. 01, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Other Commitments [Line Items]
Allowance for credit loss	$ 34,172	$ 28,389	$ 28,389	$ 23,904	$ 23,243
Real estate related loans percentage	91.61%		91.84%
Number of deposits \| depositRelationship	84
Deposits over five million, total	$ 5,000
Deposits over five million, amount	$ 1,900,000
Percentage of deposits over five million deposits	64.32%
Largest single deposit	$ 220,900
Percentage of largest single deposit to total deposits	7.56%
Uninsured amount	$ 22,000		$ 16,200
Unfunded Loan Commitment
Other Commitments [Line Items]
Allowance for credit loss	$ 1,217	$ 125	$ 125	$ 102	$ 102