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GOODWILL AND OTHER INTANGIBLES - Gross Amount and Accumulated Amortization of Other Intangible Assets (Detail) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021
Finite Lived Intangible Assets [Line Items] |  |
Net carrying amount | $ 23,245 | $ 29,934
Core Deposits [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross amount | 87,544 | 87,544
Accumulated amortization | (64,726) | (58,973)
Net carrying amount | $ 22,818 | $ 28,571
Remaining amortization period (in years) | 7 years 3 months 18 days | 8 years
Customer Relationships [Member] | Credit Card [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross amount | $ 3,800 | $ 3,800
Accumulated amortization | (3,424) | (2,602)
Net carrying amount | $ 376 | $ 1,198
Remaining amortization period (in years) | 10 months 24 days | 1 year 8 months 12 days
Customer Relationships [Member] | Insurance Customer Intangible [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross amount | $ 1,067 | $ 1,067
Accumulated amortization | (1,016) | (902)
Net carrying amount | $ 51 | $ 165
Remaining amortization period (in years) | 3 months 18 days | 1 year 1 month 6 days

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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