LEASES (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Lease cost
Operating lease cost	$ 1,679	$ 5,030
Sublease income	(32)	(71)
Total lease cost	$ 1,647	4,959
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases		5,180
Operating right-of-use assets obtained in exchange for lease liabilities		$ 39,825
Weighted-average remaining lease term-operating leases	8 years 1 month 6 days	8 years 1 month 6 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