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Loans - Summary of Allowance for Loan Losses by Portfolio Class and Category (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance		$ 137,950
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(34,516)	$ (21,874)
Allowance For Credit Losses, Purchased Loans, Gross Up	$ 3,300
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	140,022	140,022	137,950
Commercial and Industrial Portfolio Segment [Member]
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(22,853)	(12,768)
Commercial Real Estate Investor Owned Financing Receivable [Member]
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(3,972)	(700)
Construction and land development
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(3,281)	(3,224)
Consumer
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(250)	(262)
Non-Covered Loans
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance		137,950	134,771	$ 136,932
Provision for Loan, Lease, and Other Losses		23,076	20,629	35,883
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(34,516)	(21,874)	(43,215)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery		10,214	4,424	5,171
Allowance For Credit Losses, Purchased Loans, Gross Up		3,298
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	140,022	140,022	137,950	134,771
Non-Covered Loans | Commercial and Industrial Portfolio Segment [Member]
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance		63,231	58,886	53,835
Provision for Loan, Lease, and Other Losses		19,514	14,770	38,308
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(23,326)	(13,073)	(36,302)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery		7,955	2,648	3,045
Allowance For Credit Losses, Purchased Loans, Gross Up		971
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	68,345	68,345	63,231	58,886
Non-Covered Loans | Commercial Real Estate Investor Owned Financing Receivable [Member]
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance		34,217	31,280	36,191
Provision for Loan, Lease, and Other Losses		(44)	3,502	(335)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(3,972)	(700)	(4,869)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery		330	135	293
Allowance For Credit Losses, Purchased Loans, Gross Up		1,034
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	31,565	31,565	34,217	31,280
Non-Covered Loans | CRE - owner occupied
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance		20,400	23,405	22,752
Provision for Loan, Lease, and Other Losses		(1,051)	(60)	523
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(2,061)	(3,074)	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery		673	129	130
Allowance For Credit Losses, Purchased Loans, Gross Up		1,257
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	19,218	19,218	20,400	23,405
Non-Covered Loans | Construction and land development
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance		9,837	10,198	11,444
Provision for Loan, Lease, and Other Losses		4,418	2,764	(1,300)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(3,281)	(3,224)	(9)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery		41	99	63
Allowance For Credit Losses, Purchased Loans, Gross Up		1
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	11,016	11,016	9,837	10,198
Non-Covered Loans | Residential real estate
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance		6,534	6,142	7,928
Provision for Loan, Lease, and Other Losses		1,402	128	(2,109)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(912)	(878)	(656)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery		982	1,142	979
Allowance For Credit Losses, Purchased Loans, Gross Up		17
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	8,023	8,023	6,534	6,142
Non-Covered Loans | Consumer
Allowance for Loan Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance		3,731	4,860	4,782
Provision for Loan, Lease, and Other Losses		(1,163)	(475)	796
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff		(964)	(925)	(1,379)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery		233	271	661
Allowance For Credit Losses, Purchased Loans, Gross Up		18
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	$ 1,855	$ 1,855	$ 3,731	$ 4,860

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Allowance For Credit Losses, Purchased Loans, Gross Up

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

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Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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