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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amounts of All Derivative Instruments (Detail) - Not Designated as Hedging Instrument, Economic Hedge [Member] - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Economic undesignated hedges:
Notional amount of derivatives	$ 178,993	$ 188,081
Sale of TBA GNMA MBS pools [Member]
Economic undesignated hedges:
Notional amount of derivatives	30,000	33,000
Forward loan sales commitments [Member]
Economic undesignated hedges:
Notional amount of derivatives	3,869	6,339
Interest Rate Lock Commitments [Member]
Economic undesignated hedges:
Notional amount of derivatives	10,104	11,722
Interest Rate Cap [Member] | Written
Economic undesignated hedges:
Notional amount of derivatives	67,510	68,510
Interest Rate Cap [Member] | Purchase
Economic undesignated hedges:
Notional amount of derivatives	$ 67,510	$ 68,510

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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- References

No definition available.

+ Details

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- Details

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