LEASES (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($)		Jun. 30, 2019 USD ($)
Components of Lease Expense [Abstract]
Operating lease cost	$ 7,708		$ 15,295
Short-term lease cost	297		668
Variable lease cost	1,547		3,128
Total lease cost	9,552	[1]	19,091	[1]
Supplemental Information Related to Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	7,686		15,392
Right-of-use assets obtained in exchange for new operating lease liabilities	8,629	[2]	98,514	[2]
Future Lease Payments for Operating Leases [Abstract]
2019 (excluding the six months ended June, 30, 2019)	14,035		14,035
2020	24,589		24,589
2021	18,542		18,542
2022	12,375		12,375
2023	7,906		7,906
2024 and thereafter	8,321		8,321
Total lease payments	85,768		85,768
Less: imputed interest	(6,499)		(6,499)
Total operating lease liabilities	$ 79,269		$ 79,269
Average Lease Terms and Discount Rates [Abstract]
Weighted-average remaining lease term - Operating leases	4 years 18 days		4 years 18 days
Weighted-average discount rate - Operating leases	3.90%		3.90%
Maximum [Member]
Operating Lease [Abstract]
Lease term	5 years		5 years

[1] Sublease income was immaterial

[2] Includes the right-of-use assets obtained in exchange for lease liabilities of $82.6 million which were recognized upon adoption of ASC 842 at January 1, 2019.