LEASES - Supplemental Lease Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Leases [Abstract]
Weighted-average remaining lease term (years)	6 years 2 months 12 days
Weighted-average discount rate	2.93%
Operating cash flows from operating leases (cash payments)	$ 3,482
Operating cash flows from operating leases (lease liability reduction)	3,081
Operating lease right-of-use assets obtained in exchange for leases entered into during the period	$ 262