DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amounts of All Derivative Instruments (Detail) - Not Designated as Hedging Instrument, Economic Hedge [Member] - USD ($) |
Sep. 30, 2018 |
Dec. 31, 2017 |
---|---|---|
Economic undesignated hedges: | ||
Notional amount of derivatives | $ 212,025,000 | $ 208,020,000 |
Forward Contracts [Member] | ||
Economic undesignated hedges: | ||
Notional amount of derivatives | 28,000,000 | 26,000,000 |
Forward loan sales commitments [Member] | ||
Economic undesignated hedges: | ||
Notional amount of derivatives | 5,005,000 | 0 |
Interest Rate Cap [Member] | Written | ||
Economic undesignated hedges: | ||
Notional amount of derivatives | 89,510,000 | 91,010,000 |
Interest Rate Cap [Member] | Purchase | ||
Economic undesignated hedges: | ||
Notional amount of derivatives | $ 89,510,000 | $ 91,010,000 |