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v3.23.1

Loans, Allowance for Credit Losses and Credit Quality - Textual (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Allowance for credit losses | $ 159,131,000 | [1] | $ 144,518,000 | [1] | $ 152,419,000 | $ 146,922,000
Unfunded commitments | $ 1,600,000 |  |  |  | 1,300,000 |
Days to be termed as non accrual loans | 90 days |  |  |  |  |
Additional commitments to lend to borrowers experiencing financial difficulty party to a loan modification | $ 0 |  |  |  |  |
Additional commitments to lend to borrowers party to a TDR |  |  |  |  | 64,000 |
TDRs modified during the prior twelve months subsequently defaulted | 0 |  | 0 |  |  |
Commercial And Industrial [Member] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Allowance for credit losses | $ 36,932,000 | [1] | $ 14,169,000 | [1] | $ 27,559,000 | $ 14,402,000
[1] | Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $52.7 million and $39.4 million as of March 31, 2023 and March 31, 2022, respectively.

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