LEASES - Schedule of Lease Costs (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Lease Cost
Operating lease cost	$ 817	$ 2,381
Other information
(Gains) and losses on sale and leaseback transactions, net	0	0
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	823	2,395
Right-of-use assets obtained in exchange for new operating lease liabilities, net of right-of-use assets sold	$ (240)	$ 8,485
Weighted-average remaining lease term - operating leases	4 years 11 months 19 days	4 years 11 months 19 days
Weighted-average discount rate - operating	4.60%	4.60%