LEASES (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Operating Lease, Weighted Average Remaining Lease Term	6 years 4 months 24 days	6 years 4 months 24 days
Lease, Cost	$ 6,546	$ 12,435
Operating Lease, Payments	4,549	9,233
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 9,717	$ 14,673
Operating Lease, Weighted Average Discount Rate, Percent	3.60%	3.60%
Leases, Operating [Abstract]
Operating Lease, Right-of-Use Asset	$ 58,363	$ 58,363
Operating Lease, Liability, Current	14,362	14,362
Operating Lease, Liability, Noncurrent	44,326	44,326
Operating Lease Liabilities, Payments Due [Abstract]
2019	8,330	8,330
2020	14,777	14,777
2021	11,441	11,441
2022	8,760	8,760
2023	7,128	7,128
After 2023	16,632	16,632
Total lease payments	67,068	67,068
Less: Imputed interest	(8,380)	(8,380)
Operating lease liabilities	$ 58,688	$ 58,688
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	1 year	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	11 years	11 years