LEASES (Components of Lease Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lease, Cost [Line Items]
Total lease cost	$ 20,059	$ 19,734	$ 61,796	$ 54,649
Selling, general and administrative expenses
Lease, Cost [Line Items]
Operating lease cost	18,437	16,210	56,151	45,125
Variable lease cost	1,442	2,439	4,656	6,535
Short-term lease cost	$ 180	$ 1,085	$ 989	$ 2,989