Loans, Allowance for Credit Losses, and Asset Quality Information - Summary of Nonperforming Assets (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual loans	$ 26,884	$ 26,884	$ 28,514
Amortization cost basis	6,785	10,723
Total loans	8,027,037	8,027,037	6,665,145
Nonperforming Financial Instruments
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual loans	26,884	26,884	28,514
Modifications to borrowers in financial distress	10,723	10,723	0
TDRs - accruing	0	0	9,121
Total loans	37,607	37,607	37,635
Foreclosed real estate	1,235	1,235	658
Total nonperforming assets	$ 38,842	$ 38,842	$ 38,293

Financing Receivable, Excluding Accrued Interest, Trouble Debt Restructuring, Amount

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- Definition

Financing Receivable, Including Foreclosed Real Estate

+ References

No definition available.

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

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- Definition

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
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Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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- Definition

Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

+ References

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