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Commitments and Contingencies (Details) - USD ($) | Jun. 30, 2023 | Dec. 31, 2022
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Supply Commitment [Line Items] |  |
Loss contingencies for all legal claims | $ 225,000 | $ 229,000
Loss contingencies for all legal claims | 225,000 | 229,000
Commitments to extend credit |  |
Supply Commitment [Line Items] |  |
Commitments and letters of credit | 2,761,027,000 | 2,856,263,000
Standby letters of credit |  |
Supply Commitment [Line Items] |  |
Commitments and letters of credit | 124,060,000 | 132,538,000
Other letters of credit |  |
Supply Commitment [Line Items] |  |
Commitments and letters of credit | 52,674,000 | 22,376,000
Commitments to fund investments in affordable housing partnerships |  |
Supply Commitment [Line Items] |  |
Commitments and letters of credit | $ 9,322,000 | $ 11,792,000

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