LEASE COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Remaining lease term, in years	6 years
Option to extend, in years	5 years	5 years
Lease cost	$ 800,000	$ 1,600,000
Material contingencies	$ 0	$ 0	$ 0