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FAIR VALUE MEASUREMENTS - Additional Information (Detail) - USD ($) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Fair Value Measurements Disclosure [Line Items] |  |  |
Transfer of assets and liabilities between the hierarchy levels | $ 0 | $ 0 |
Allocated allowance for loan losses | 2,700,000 |  |
Provision for fair value measurements included in allowance for loan losses | 5,100,000 |  |
Carrying amount of OREO | 2,500,000 |  |
Written down of OREO | 1,600,000 |  |
Loss from OREO included in earnings | 500,000 |  |
Fair Value, Nonrecurring [Member] |  |  |
Fair Value Measurements Disclosure [Line Items] |  |  |
Impaired loans, carrying amount | 5,200,000 |  |
Allocated allowance for loan losses | 5,000,000 |  | $ 15,000,000
Mortgage Servicing Rights [Member] |  |  |
Fair Value Measurements Disclosure [Line Items] |  |  |
Valuation allowance for servicing rights | 3,100,000 |  |
Mortgage Servicing Rights [Member] | Fair Value, Nonrecurring [Member] |  |  |
Fair Value Measurements Disclosure [Line Items] |  |  |
Servicing asset, gross | 27,600,000 |  |
Servicing asset | 24,600,000 |  |
Valuation allowance for servicing rights | $ 2,600,000 |  |

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- Definition Amount of gain (loss) included in earnings relating to other real estate owned that is measured at fair value on a non-recurring basis. + References No definition available. + Details
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- Definition Amount of impaired loans subject to fair value measurements. + References No definition available. + Details
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- Definition Carrying amount of other real estate owned that is measured at fair value on a non-recurring basis. + References No definition available. + Details
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- Definition Amount of the written-down value of other real estate owned that is measured at fair value on a non-recurring basis. + References No definition available. + Details
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- Definition Amount of provision for loan losses applicable to the current period fair value measurements for impaired loans measured at fair value on a non-recurring basis. + References No definition available. + Details
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- Definition Servicing Asset, Gross + References No definition available. + Details
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- Definition Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524 + Details
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- Definition Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 + Details
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- Definition Reflects the estimated amount of impairment as of the balance sheet date of recognized servicing assets that are being amortized in proportion to and over the period of estimated net servicing income or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746 + Details
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