DERIVATIVES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Jan. 01, 2020
Derivative [Line Items]
Net unrealized loss	$ 261	$ 264	$ 0	$ 525	$ 0	$ 0
Interest Rate Hedge, Tax	(83)	$ (84)	$ 0	(167)	$ 0
Notional amount	$ 350,000			$ 350,000		$ 0
Estimated period for expected loss				12 months
Estimated loss reclassified into earnings				$ (20)
Scenario, Forecast
Derivative [Line Items]
Notional amount							$ 150,000