Loans Receivable, Allowance for Credit Losses and Credit Quality - Change in the ACL (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025
Change in the ACL by major loan segment
Beginning balance	$ 87,411		$ 38,744
Provision for (release of) credit losses	6,382		947
Charge offs	(13,835)	$ (5,104)	(1,558)
Recoveries of loans previously charged off	237		205
Ending balance	80,195	87,411	38,338
Residential real estate, portfolio \| One to four-family residential
Change in the ACL by major loan segment
Beginning balance	1,703		1,195
Provision for (release of) credit losses	62		98
Charge offs	(56)
Ending balance	1,709	1,703	1,293
Residential real estate, portfolio \| Home equity
Change in the ACL by major loan segment
Beginning balance	152		74
Provision for (release of) credit losses	3		14
Ending balance	155	152	88
Commercial real estate, portfolio \| Commercial real estate
Change in the ACL by major loan segment
Beginning balance	21,599		9,481
Provision for (release of) credit losses	386		(723)
Charge offs		(18)
Ending balance	21,985	21,599	8,758
Commercial real estate, portfolio \| Multi-family residential
Change in the ACL by major loan segment
Beginning balance	1,188		599
Provision for (release of) credit losses	209		16
Ending balance	1,397	1,188	615
Commercial, portfolio \| Construction & Land Development
Change in the ACL by major loan segment
Beginning balance	5,050		4,137
Provision for (release of) credit losses	154		703
Ending balance	5,204	5,050	4,840
Commercial, portfolio \| Commercial and industrial
Change in the ACL by major loan segment
Beginning balance	49,599		11,174
Provision for (release of) credit losses	4,093		901
Charge offs	(12,370)	(3,762)
Recoveries of loans previously charged off	12		12
Ending balance	41,334	49,599	12,087
Commercial, portfolio \| Commercial and industrial \| PCD, 1
Change in the ACL by major loan segment
Charge offs	(10,600)
Commercial, portfolio \| Commercial and industrial \| PCD, 2
Change in the ACL by major loan segment
Charge offs	(1,800)
Consumer, portfolio
Change in the ACL by major loan segment
Beginning balance	7,895		12,084
Provision for (release of) credit losses	1,478		(62)
Charge offs	(1,409)	(1,324)	(1,558)
Recoveries of loans previously charged off	225		193
Ending balance	8,189	7,895	$ 10,657
Mortgage warehouse, portfolio
Change in the ACL by major loan segment
Beginning balance	225
Provision for (release of) credit losses	(3)
Ending balance	$ 222	$ 225

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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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+ References

No definition available.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-22

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