Loans and Allowance for Credit Losses on Loans - Summary of Amortized Cost of Gross Modified Loans Held for Investment (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Financing Receivable, Modifications [Line Items]
Total modified in period	$ 17,076	$ 28,002	$ 124,835	$ 90,844
Percentage of Loans Held for Investment	0.07%	0.12%	0.52%	0.37%
Payment Deferral
Financing Receivable, Modifications [Line Items]
Total modified in period	$ 1,100	$ 791	$ 81,102	$ 30,263
Term Extension
Financing Receivable, Modifications [Line Items]
Total modified in period	15,976	8,948	26,874	19,950
Payment Deferral and Term Extension
Financing Receivable, Modifications [Line Items]
Total modified in period	0	18,263	16,859	40,631
Commercial
Financing Receivable, Modifications [Line Items]
Total modified in period	$ 17,076	$ 10,497	$ 107,976	$ 55,176
Percentage of Loans Held for Investment	0.07%	0.04%	0.45%	0.23%
Interest Rate Reduction	0.00%	0.00%	0.00%	0.00%
Payment Deferrals	$ 18	$ 814	$ 5,356	$ 6,711
Commercial \| Minimum
Financing Receivable, Modifications [Line Items]
Term Extension (in months)	7 months	3 months	4 months	3 months
Commercial \| Maximum
Financing Receivable, Modifications [Line Items]
Term Extension (in months)	8 months	6 months	8 months	26 months
Commercial \| Payment Deferral
Financing Receivable, Modifications [Line Items]
Total modified in period	$ 1,100	$ 791	$ 81,102	$ 12,100
Commercial \| Term Extension
Financing Receivable, Modifications [Line Items]
Total modified in period	15,976	8,948	26,874	19,950
Commercial \| Payment Deferral and Term Extension
Financing Receivable, Modifications [Line Items]
Total modified in period	$ 0	758	0	23,126
Commercial real estate
Financing Receivable, Modifications [Line Items]
Total modified in period		$ 17,505	$ 16,859	$ 35,668
Percentage of Loans Held for Investment		0.07%	0.07%	0.15%
Interest Rate Reduction		0.00%	0.00%	0.00%
Term Extension (in months)			6 months	6 months
Payment Deferrals		$ 737	$ 737	$ 1,106
Commercial real estate \| Maximum
Financing Receivable, Modifications [Line Items]
Term Extension (in months)		6 months
Commercial real estate \| Payment Deferral
Financing Receivable, Modifications [Line Items]
Total modified in period		$ 0	0	18,163
Commercial real estate \| Term Extension
Financing Receivable, Modifications [Line Items]
Total modified in period		0	0	0
Commercial real estate \| Payment Deferral and Term Extension
Financing Receivable, Modifications [Line Items]
Total modified in period		$ 17,505	$ 16,859	$ 17,505

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- Definition

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

+ References

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-Topic 310
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-Name Accounting Standards Codification
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- Definition

Percentage, excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

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- Definition

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.

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- Definition

Percentage of decrease in weighted-average contractual interest rate of financing receivable modified for debtor experiencing financial difficulty.

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- Definition

Period of increase in weighted-average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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