LEASES (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Lease cost
Operating lease cost	$ 1,688	$ 3,351
Sublease income	(15)	(39)
Total lease cost	$ 1,673	3,312
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases		3,441
Operating right-of-use assets obtained in exchange for lease liabilities		$ 39,825
Weighted-average remaining lease term-operating leases	8 years 2 months 12 days	8 years 2 months 12 days
Weighted-average discount rate-operating leases	3.41%	3.41%
Renewal options		true
Minimum
Lease cost
Renewal term	5 years	5 years
Maximum
Lease cost
Renewal term	10 years	10 years