ADVANCES FROM THE FEDERAL HOME LOAN BANK (FHLB) - Summary of Advances from FHLB (Parenthetical) (Detail)	Dec. 31, 2020	Dec. 31, 2019
Short-term Debt [Member]
Federal Home Loan Bank, Advances [Line Items]
Weighted-interest rate	1.83%
Federal Home Loan Bank, Advance, Branch of FHLB Bank, Interest Rate, Type [Fixed List]	Fixed	Fixed
Long-term Debt [Member]
Federal Home Loan Bank, Advances [Line Items]
Weighted-interest rate	2.26%	2.21%
Federal Home Loan Bank, Advance, Branch of FHLB Bank, Interest Rate, Type [Fixed List]	Fixed	Fixed

The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(3)(a))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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- Definition

Describes the basis for the interest rate (floating or fixed) applicable to the Federal Home Loan Bank advances of the entity as of Balance Sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

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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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