Allowance for Credit Losses (“ACL”) on Loans - Amount of Loans Receivable Held-for-Investment and Related Allowances Per Loan Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 38,144	$ 35,183	$ 35,183
Charge-offs	(1,499)	(3,098)
Recoveries	142	254
Provisions (credit)	247	2,582
Ending balance	37,034	34,921	38,144
Originated Loans Net
Individually evaluated for impairment	1,582		1,193
Ending balance: collectively evaluated for impairment	32,916		34,330
Ending balance: PCD loans evaluated for impairment	2,536		2,621
Total	3,807,957		3,856,773
Ending balance: individually evaluated for impairment	19,149		11,739
Ending balance: collectively evaluated for impairment	3,780,564		3,836,750
Ending balance: PCD loans evaluated for impairment	8,244		8,263
PPP loans not evaluated for impairment			21
Loans held-for-investment excluding PCD loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	35,523	32,279	32,279
Charge-offs	(1,499)	(3,098)	(5,340)
Recoveries	142	254
Provisions (credit)	332	2,752
Ending balance	34,498	32,187	35,523
Originated Loans Net
Individually evaluated for impairment	1,582		1,193
Ending balance: collectively evaluated for impairment	32,916		34,330
Ending balance: PCD loans evaluated for impairment	0		0
Total	3,799,713		3,848,510
Ending balance: individually evaluated for impairment	19,149		11,739
Ending balance: collectively evaluated for impairment	3,780,564		3,836,750
Ending balance: PCD loans evaluated for impairment	0		0
PPP loans not evaluated for impairment			21
Loans held-for-investment excluding PCD loans \| Real Estate
Originated Loans Net
Total	3,625,695		3,680,934
Loans held-for-investment excluding PCD loans \| Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,842	6,724	6,724
Charge-offs	(1,494)	(3,098)	(5,340)
Recoveries	124	238
Provisions (credit)	1,310	2,245
Ending balance	5,782	6,109	5,842
Originated Loans Net
Individually evaluated for impairment	489		488
Ending balance: collectively evaluated for impairment	5,293		5,354
Ending balance: PCD loans evaluated for impairment	0		0
Total	172,988		166,167
Ending balance: individually evaluated for impairment	3,268		3,278
Ending balance: collectively evaluated for impairment	169,720		162,868
Ending balance: PCD loans evaluated for impairment	0		0
PPP loans not evaluated for impairment			21
Loans held-for-investment excluding PCD loans \| Other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4	4	4
Charge-offs	0	0
Recoveries	0	1
Provisions (credit)	(2)	(1)
Ending balance	2	4	4
Originated Loans Net
Individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	2		4
Ending balance: PCD loans evaluated for impairment	0		0
Total	1,030		1,409
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	1,030		1,409
Ending balance: PCD loans evaluated for impairment	0		0
PPP loans not evaluated for impairment			0
PCD loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,621	2,904	2,904
Charge-offs	0	0
Recoveries	0	0
Provisions (credit)	(85)	(170)
Ending balance	2,536	2,734	2,621
Originated Loans Net
Individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	0		0
Ending balance: PCD loans evaluated for impairment	2,536		2,621
Total	8,244		8,263
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	0		0
Ending balance: PCD loans evaluated for impairment	8,244		8,263
PPP loans not evaluated for impairment			0
Commercial \| Loans held-for-investment excluding PCD loans \| Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	24,482	20,949	20,949
Charge-offs	0	0
Recoveries	18	15
Provisions (credit)	(795)	561
Ending balance	23,705	21,525	24,482
Originated Loans Net
Individually evaluated for impairment	1,093		705
Ending balance: collectively evaluated for impairment	22,612		23,777
Ending balance: PCD loans evaluated for impairment	0		0
Total	3,215,637		3,272,755
Ending balance: individually evaluated for impairment	14,654		7,211
Ending balance: collectively evaluated for impairment	3,200,983		3,265,544
Ending balance: PCD loans evaluated for impairment	0		0
PPP loans not evaluated for impairment			0
One-to-four family residential mortgage \| Loans held-for-investment excluding PCD loans \| Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,213	2,245	2,245
Charge-offs	0	0
Recoveries	0	0
Provisions (credit)	(108)	(31)
Ending balance	2,105	2,214	2,213
Originated Loans Net
Individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	2,105		2,213
Ending balance: PCD loans evaluated for impairment	0		0
Total	164,199		165,100
Ending balance: individually evaluated for impairment	1,212		1,234
Ending balance: collectively evaluated for impairment	162,987		163,866
Ending balance: PCD loans evaluated for impairment	0		0
PPP loans not evaluated for impairment			0
Home equity and lines of credit \| Loans held-for-investment excluding PCD loans \| Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,880	2,254	2,254
Charge-offs	(5)	0
Recoveries	0	0
Provisions (credit)	(70)	(22)
Ending balance	2,805	2,232	2,880
Originated Loans Net
Individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	2,805		2,880
Ending balance: PCD loans evaluated for impairment	0		0
Total	195,696		198,557
Ending balance: individually evaluated for impairment	15		16
Ending balance: collectively evaluated for impairment	195,681		198,541
Ending balance: PCD loans evaluated for impairment	0		0
PPP loans not evaluated for impairment			0
Construction and land \| Loans held-for-investment excluding PCD loans \| Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	102	103	103
Charge-offs	0	0
Recoveries	0	0
Provisions (credit)	(3)	0
Ending balance	99	$ 103	102
Originated Loans Net
Individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	99		102
Ending balance: PCD loans evaluated for impairment	0		0
Total	50,163		44,522
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	50,163		44,522
Ending balance: PCD loans evaluated for impairment	$ 0		0
PPP loans not evaluated for impairment			$ 0

Financing Receivable, Allowance for Credit Losses, PCD Loans Evaluated for Impairment

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Financing Receivable, Not Evaluated For Impairment

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Financing Receivables, PCD Loans Evaluated For Impairment

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Originated loans, net.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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 of allowance for credit loss on financing receivable evaluated on collective basis. Excludes financing receivable evaluated on individual basis.

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Amount of allowance for credit loss on financing receivable evaluated on individual basis. Excludes financing receivable evaluated on collective basis.

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Amount of financing receivable collectively evaluated for credit loss. Excludes financing receivable individually evaluated for credit loss.

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

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Amount of financing receivable individually evaluated for credit loss. Excludes financing receivable collectively evaluated for credit loss.

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