Loans Receivable, Allowance for Credit Losses and Credit Quality - Change in the ACL (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Change in the ACL by major loan segment
Beginning balance	$ 80,195		$ 38,338	$ 87,411	$ 38,744
Provision for (release of) credit losses	2,994		4,244	9,376	5,191
Charge offs	(2,385)	$ (5,104)	(1,190)	(16,220)	(2,748)
Recoveries of loans previously charged off	1,284		1,209	1,521	1,414
Ending balance	82,088	87,411	42,601	82,088	42,601
Residential real estate, portfolio \| One to four-family residential
Change in the ACL by major loan segment
Beginning balance	1,709		1,293	1,703	1,195
Provision for (release of) credit losses			(5)	62	93
Charge offs				(56)
Ending balance	1,709	1,703	1,288	1,709	1,288
Residential real estate, portfolio \| Home equity
Change in the ACL by major loan segment
Beginning balance	155		88	152	74
Provision for (release of) credit losses	(6)		3	(3)	17
Ending balance	149	152	91	149	91
Commercial real estate, portfolio \| Commercial real estate
Change in the ACL by major loan segment
Beginning balance	21,985		8,758	21,599	9,481
Provision for (release of) credit losses	659		400	1,045	(323)
Charge offs	(10)	(18)		(10)
Recoveries of loans previously charged off			923		923
Ending balance	22,634	21,599	10,081	22,634	10,081
Commercial real estate, portfolio \| Multi-family residential
Change in the ACL by major loan segment
Beginning balance	1,397		615	1,188	599
Provision for (release of) credit losses	(150)		(77)	59	(61)
Ending balance	1,247	1,188	538	1,247	538
Commercial, portfolio \| Construction and land development
Change in the ACL by major loan segment
Beginning balance	5,204		4,840	5,050	4,137
Provision for (release of) credit losses	906		2,313	1,060	3,016
Ending balance	6,110	5,050	7,153	6,110	7,153
Commercial, portfolio \| Commercial and industrial
Change in the ACL by major loan segment
Beginning balance	41,334		12,087	49,599	11,174
Provision for (release of) credit losses	(1,788)		2,216	2,305	3,117
Charge offs	(294)	(3,762)		(12,664)
Recoveries of loans previously charged off	1,188		12	1,200	24
Ending balance	40,440	49,599	14,315	40,440	14,315
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	8,189		10,657	7,895	12,084
Provision for (release of) credit losses	3,443		(606)	4,921	(668)
Charge offs	(2,081)	(1,324)	(1,190)	(3,490)	(2,748)
Recoveries of loans previously charged off	96		274	321	467
Ending balance	9,647	7,895	$ 9,135	9,647	$ 9,135
Mortgage warehouse, portfolio
Change in the ACL by major loan segment
Beginning balance	222			225
Provision for (release of) credit losses	(70)			(73)
Ending balance	$ 152	$ 225		$ 152

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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+ References

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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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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
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