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LEASES (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Components of Lease Expense [Abstract]
Operating lease cost		$ 7,729	$ 7,812
Short-term lease cost		368	294
Variable lease cost		1,611	1,532
Total lease cost	[1]	9,708	9,638
Supplemental Information Related to Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities		8,112	7,790
Right-of-use assets obtained in exchange for new operating lease liabilities		7,867	$ 11,540
Future Lease Payments for Operating Leases [Abstract]
2021 (excluding the three months ended March 31, 2021)		22,750
2022		25,637
2023		19,456
2024		13,006
2025		7,331
2026 and thereafter		6,732
Total lease payments		94,912
Less: imputed interest		5,552
Total operating lease liabilities		$ 89,360
Average Lease Terms and Discount Rates [Abstract]
Weighted-average remaining lease term - Operating leases		4 years	4 years 3 months 18 days
Weighted-average discount rate - Operating leases		3.00%	3.90%
Maximum [Member]
Operating Lease [Abstract]
Lease term		5 years
[1] Sublease income was immaterial

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