LEASES - Supplemental Cash Flow Information Related to Leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 650
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 5,651
Weighted-average remaining lease term of operating	11 years 5 months 19 days
Weighted-average discount rate of operating leases	5.64%