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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
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | $ 139,656 | $ 156,530 | $ 130,924 | $ 137,804
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 2,576 |
Charge-offs | (30,020) | (21,484) | (69,713) | (45,935)
Recoveries | 12,522 | 2,987 | 18,000 | 6,731
Provision (benefit) for credit losses on loans and leases | 17,055 | (7,836) | 57,426 | 31,597
Ending balance | 139,213 | 130,197 | 139,213 | 130,197
Commercial and industrial, including specialty lending |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 29,092 | 11,081 | 17,582 | 12,702
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 2,576 |
Charge-offs | (9,008) | (2,657) | (9,600) | (3,235)
Recoveries | 6,034 | 76 | 6,439 | 1,129
Provision (benefit) for credit losses on loans and leases | (1,132) | 6,631 | 7,989 | 4,535
Ending balance | 24,986 | 15,131 | 24,986 | 15,131
Commercial and industrial, including specialty lending | Commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Charge-offs | (9,008) |  | (9,600) |
Multifamily |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 15,400 | 9,765 | 14,541 | 4,477
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |
Charge-offs | (1,999) | 0 | (3,447) | (1,990)
Recoveries | 0 | 0 | 0 | 337
Provision (benefit) for credit losses on loans and leases | 2,469 | 4,479 | 4,776 | 11,420
Ending balance | 15,870 | 14,244 | 15,870 | 14,244
Multifamily | Commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Charge-offs | (1,999) |  | (3,447) |
Commercial real estate owner occupied |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 10,215 | 4,745 | 6,454 | 3,213
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |
Charge-offs | (39) | 0 | (39) | 0
Recoveries | 0 | 0 | 34 | 49
Provision (benefit) for credit losses on loans and leases | 187 | 1,475 | 3,914 | 2,958
Ending balance | 10,363 | 6,220 | 10,363 | 6,220
Commercial real estate owner occupied | Commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Charge-offs | (39) |  | (39) |
Commercial real estate non-owner occupied |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 13,495 | 8,880 | 11,219 | 6,210
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |
Charge-offs | 0 | (4,862) | (4,527) | (5,025)
Recoveries | 0 | 31 | 27 | 43
Provision (benefit) for credit losses on loans and leases | 2,324 | 7,283 | 9,100 | 10,104
Ending balance | 15,819 | 11,332 | 15,819 | 11,332
Commercial real estate non-owner occupied | Commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Charge-offs | 0 |  | (4,527) |
Construction |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 2,639 | 1,179 | 1,913 | 692
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |
Charge-offs | 0 | 0 | 0 | 0
Recoveries | 0 | 10 | 116 | 226
Provision (benefit) for credit losses on loans and leases | 491 | 425 | 1,101 | 696
Ending balance | 3,130 | 1,614 | 3,130 | 1,614
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 | 6,846 | 5,578 | 6,094 | 2,383
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |
Charge-offs | (42) | 0 | (69) | (4)
Recoveries | 29 | 13 | 34 | 58
Provision (benefit) for credit losses on loans and leases | (31) | (138) | 743 | 3,016
Ending balance | 6,802 | 5,453 | 6,802 | 5,453
Manufactured housing |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 4,338 | 4,080 | 4,430 | 4,278
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 | (258) | 402 | (350) | 204
Ending balance | 4,080 | 4,482 | 4,080 | 4,482
Installment |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 57,631 | 111,222 | 68,691 | 103,849
Allowance for credit losses on FDIC PCD loans, net of charge-offs |  |  | 0 |
Charge-offs | (18,932) | (13,965) | (52,031) | (35,681)
Recoveries | 6,459 | 2,857 | 11,350 | 4,889
Provision (benefit) for credit losses on loans and leases | 13,005 | (28,393) | 30,153 | (1,336)
Ending balance | $ 58,163 | $ 71,721 | $ 58,163 | $ 71,721

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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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