INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Schedule of Components and Changes in Income Tax Expense (Benefit) and Respective Balance Sheet Items [Line Items]
Effective tax rate	16.20%	0.60%	13.10%	(5.40%)
Excess tax benefit	$ 4,228	$ 6,067	$ 20,482	$ 16,197
Net deferred tax asset/(liability) resulting from the change in tax status of foreign subsidiaries		(252)		25,088
Tax Cuts and Jobs Act
Schedule of Components and Changes in Income Tax Expense (Benefit) and Respective Balance Sheet Items [Line Items]
Provisional income tax expense		$ 7,053		$ 4,896