LEASES (Components of Lease Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lease, Cost [Line Items]
Total lease cost	$ 81,370	$ 75,340
Selling, general and administrative expenses
Lease, Cost [Line Items]
Operating lease cost	73,740	62,740
Variable lease cost	6,461	8,730
Short-term lease cost	$ 1,169	$ 3,870