Loans and Leases Receivable and Allowance for Credit Losses on Loans and Leases - Schedule of Allowance for Credit Losses (Details) - USD ($) $ in Thousands		12 Months Ended
Jun. 15, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		$ 135,311	$ 130,924	$ 137,804
Charge-offs		(84,465)	(95,066)	(77,196)
Allowance for credit losses on FDIC PCD loans, net of charge-offs			2,576
Recoveries		16,130	26,031	10,828
Provision (benefit) for credit losses on loans and leases		69,799	70,846	59,488
Ending balance		136,775	135,311	130,924
Allowance for credit losses on FDIC PCD loans, excluding charge-offs	$ 8,700
Commercial and industrial, including specialized lending
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		23,503	17,582	12,702
Charge-offs		(23,735)	(16,915)	(16,248)
Allowance for credit losses on FDIC PCD loans, net of charge-offs			2,576
Recoveries		5,689	8,472	1,182
Provision (benefit) for credit losses on loans and leases		23,922	11,788	19,946
Ending balance		29,379	23,503	17,582
Commercial and industrial, including specialized lending \| Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		(23,735)	(16,915)
Multifamily
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		16,343	14,541	4,477
Charge-offs		(4,073)	(3,574)	(1,990)
Allowance for credit losses on FDIC PCD loans, net of charge-offs			0
Recoveries		0	0	337
Provision (benefit) for credit losses on loans and leases		6,241	5,376	11,717
Ending balance		18,511	16,343	14,541
Multifamily \| Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		(4,073)	(3,574)
Commercial real estate owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		9,882	6,454	3,213
Charge-offs		(365)	(39)	0
Allowance for credit losses on FDIC PCD loans, net of charge-offs			0
Recoveries		0	34	51
Provision (benefit) for credit losses on loans and leases		1,238	3,433	3,190
Ending balance		10,755	9,882	6,454
Commercial real estate owner occupied \| Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		(365)	(39)
Commercial real estate non-owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		16,859	11,219	6,210
Charge-offs		(145)	(4,527)	(6,075)
Allowance for credit losses on FDIC PCD loans, net of charge-offs			0
Recoveries		0	315	121
Provision (benefit) for credit losses on loans and leases		691	9,852	10,963
Ending balance		17,405	16,859	11,219
Commercial real estate non-owner occupied \| Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		(145)	(4,527)
Construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		1,482	1,913	692
Charge-offs		0	0	0
Allowance for credit losses on FDIC PCD loans, net of charge-offs			0
Recoveries		10	116	236
Provision (benefit) for credit losses on loans and leases		(242)	(547)	985
Ending balance		1,250	1,482	1,913
Construction \| Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		0	0
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		6,586	6,094	2,383
Charge-offs		(38)	(69)	(17)
Allowance for credit losses on FDIC PCD loans, net of charge-offs			0
Recoveries		79	35	64
Provision (benefit) for credit losses on loans and leases		(659)	526	3,664
Ending balance		5,968	6,586	6,094
Manufactured housing
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		4,239	4,430	4,278
Charge-offs		0	0	0
Allowance for credit losses on FDIC PCD loans, net of charge-offs			0
Recoveries		0	0	0
Provision (benefit) for credit losses on loans and leases		(410)	(191)	152
Ending balance		3,829	4,239	4,430
Personal installment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		56,417	68,691	103,849
Charge-offs		(56,109)	(69,942)	(52,866)
Allowance for credit losses on FDIC PCD loans, net of charge-offs			0
Recoveries		10,352	17,059	8,837
Provision (benefit) for credit losses on loans and leases		39,018	40,609	8,871
Ending balance		$ 49,678	$ 56,417	$ 68,691
Specialized lending \| Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-off of certain PCD loans	$ 6,200

Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase, Excluding Charge-Offs

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- Definition

Financing Receivable, Excluding Accrued Interest, Purchased With Credit Deterioration, Allowance For Credit Loss, Writeoff

+ References

No definition available.

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- Definition

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

+ References

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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- Definition

Amount of increase in allowance for credit loss on financing receivable purchased with credit deterioration.

+ References

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

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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 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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- Definition

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 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 2: 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

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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. 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 (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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