INCOME TAXES (Details 5) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Beginning balance		$ 22,800,000	$ 33,800,000
Increase for current year tax positions		1,700,000	2,000,000.0
Increase for prior year tax positions		200,000	1,500,000
Decrease for prior year tax positions	$ 14,300,000	3,500,000	14,300,000
Decrease due to tax settlements		0	(200,000)
Foreign currency translation adjustments		100,000	0
Ending balance		$ 21,300,000	$ 22,800,000