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LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Schedule of Allowance for Credit Losses (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | $ 147,418 | $ 132,436 | $ 136,775 | $ 135,311 | $ 135,311
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 1,000 |  |
Charge-offs | (17,500) | (21,224) | (55,425) | (66,775) | (84,465)
Recoveries | 2,129 | 4,180 | 9,795 | 13,052 |
Provision (benefit) for credit losses on loans and leases | 19,762 | 17,766 | 59,664 | 51,570 |
Ending balance | 151,809 | 133,158 | 151,809 | 133,158 | 136,775
Commercial and industrial, including specialized lending |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 36,262 | 23,721 | 29,379 | 23,503 | 23,503
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 1,000 |  |
Charge-offs | (2,383) | (6,538) | (12,886) | (19,282) |
Recoveries | 203 | 1,482 | 3,604 | 4,889 |
Provision (benefit) for credit losses on loans and leases | 313 | 6,526 | 13,298 | 16,081 |
Ending balance | 34,395 | 25,191 | 34,395 | 25,191 | 29,379
Allowance for credit losses |  |  | 1,000 |  |
Multifamily |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 20,864 | 20,652 | 18,511 | 16,343 | 16,343
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |  |
Charge-offs | 0 | (2,167) | (3,834) | (4,073) |
Recoveries | 0 | 0 | 0 | 0 |
Provision (benefit) for credit losses on loans and leases | (891) | (395) | 5,296 | 5,820 |
Ending balance | 19,973 | 18,090 | 19,973 | 18,090 | 18,511
Commercial real estate owner occupied |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 12,514 | 8,431 | 10,755 | 9,882 | 9,882
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |  |
Charge-offs | (335) | (4) | (771) | (26) |
Recoveries | 0 | 0 | 9 | 0 |
Provision (benefit) for credit losses on loans and leases | (1,188) | 2,486 | 998 | 1,057 |
Ending balance | 10,991 | 10,913 | 10,991 | 10,913 | 10,755
Commercial real estate non-owner occupied |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 20,679 | 17,966 | 17,405 | 16,859 | 16,859
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |  |
Charge-offs | (3,073) | 0 | (3,073) | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Provision (benefit) for credit losses on loans and leases | 2,178 | (663) | 5,452 | 444 |
Ending balance | 19,784 | 17,303 | 19,784 | 17,303 | 17,405
Construction |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 2,160 | 1,856 | 1,250 | 1,482 | 1,482
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |  |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 3 | 6 | 10 |
Provision (benefit) for credit losses on loans and leases | (182) | (253) | 722 | 114 |
Ending balance | 1,978 | 1,606 | 1,978 | 1,606 | 1,250
Residential real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 6,331 | 5,884 | 5,968 | 6,586 | 6,586
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |  |
Charge-offs | (39) | (19) | (40) | (38) |
Recoveries | 14 | 40 | 19 | 61 |
Provision (benefit) for credit losses on loans and leases | 39 | (68) | 398 | (772) |
Ending balance | 6,345 | 5,837 | 6,345 | 5,837 | 5,968
Manufactured housing |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 3,721 | 4,094 | 3,829 | 4,239 | 4,239
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |  |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Provision (benefit) for credit losses on loans and leases | (213) | (13) | (321) | (158) |
Ending balance | 3,508 | 4,081 | 3,508 | 4,081 | 3,829
Installment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 44,887 | 49,832 | 49,678 | 56,417 | 56,417
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |  |
Charge-offs | (11,670) | (12,496) | (34,821) | (43,356) |
Recoveries | 1,912 | 2,655 | 6,157 | 8,092 |
Provision (benefit) for credit losses on loans and leases | 19,706 | 10,146 | 33,821 | 28,984 |
Ending balance | $ 54,835 | $ 50,137 | $ 54,835 | $ 50,137 | $ 49,678

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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 + Details
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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 + Details
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