LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Summary of Amortized Cost of Loans and Leases on Nonaccrual Status (Detail) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Financing Receivable, Impaired [Line Items]
Non-accrual loans with no related allowance	$ 29,235	$ 23,757
Non-accrual loans with related allowance	16,706	17,515
Total non-accrual loans	45,941	41,272
Commercial and industrial, including specialized lending
Financing Receivable, Impaired [Line Items]
Non-accrual loans with no related allowance	6,916	8,108
Non-accrual loans with related allowance	11,672	11,682
Total non-accrual loans	18,588	19,790
Multifamily
Financing Receivable, Impaired [Line Items]
Non-accrual loans with no related allowance	9,090	2,092
Non-accrual loans with related allowance	0	0
Total non-accrual loans	9,090	2,092
Commercial real estate owner occupied
Financing Receivable, Impaired [Line Items]
Non-accrual loans with no related allowance	5,740	3,876
Non-accrual loans with related allowance	0	0
Total non-accrual loans	5,740	3,876
Commercial real estate non-owner occupied
Financing Receivable, Impaired [Line Items]
Non-accrual loans with no related allowance	135	168
Non-accrual loans with related allowance	0	0
Total non-accrual loans	135	168
Residential real estate
Financing Receivable, Impaired [Line Items]
Non-accrual loans with no related allowance	7,354	9,513
Non-accrual loans with related allowance	155	158
Total non-accrual loans	7,509	9,671
Manufactured housing
Financing Receivable, Impaired [Line Items]
Non-accrual loans with no related allowance	0	0
Non-accrual loans with related allowance	1,143	1,192
Total non-accrual loans	1,143	1,192
Installment
Financing Receivable, Impaired [Line Items]
Non-accrual loans with no related allowance	0	0
Non-accrual loans with related allowance	3,736	4,483
Total non-accrual loans	$ 3,736	$ 4,483

Financing Receivable, Nonaccrual, With Allowance

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. 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 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. 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 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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+ References

No definition available.

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