INCOME TAXES - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Contingency [Line Items]
Reduction of income tax provision due to tax holidays	$ 1,900	$ 1,300	$ 1,000
Unrecognized tax benefits	23,271	18,157	$ 19,150	$ 22,671
Expected changes in unrecognized tax benefits in next 12 months that would reduce effective tax rate	100
Income Taxes Receivable	25,900	$ 27,800
Federal
Income Tax Contingency [Line Items]
Tax credits expected to expire unused	100
State
Income Tax Contingency [Line Items]
Tax credits expected to expire unused	$ 8,300