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FAIR VALUES OF FINANCIAL INSTRUMENTS - Additional Information (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held-for-sale that were 90 days or more past due and still accruing	$ 0	$ 0
Discontinued Operations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held-for-sale that were 90 days or more past due and still accruing	$ 0	$ 0
Insured
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Expected loss rate	1.55%	1.55%
Uninsured
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Expected loss rate	20.00%	20.00%

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

This item represents the aggregate fair value of loans held as assets that are 90 days or more past due for which the fair value option has been elected.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612

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- Definition

Percentage of contractually collectible principal associated with a financial asset expected not to be collected due to default by the borrower.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122596-111746

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