INCOME TAXES - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
Income tax benefit from change in tax rate	$ 5,700
Change in valuation allowances		$ 0
Reduction of income tax provision due to tax holidays	1,700	1,900	$ 1,300
Unrecognized tax benefits	23,801	23,271	$ 18,157	$ 19,150
Income taxes receivable	44,100	$ 25,900
Acquisition Related Net Operating Losses
Income Tax Contingency [Line Items]
Change in valuation allowances	5,900
CARES Act
Income Tax Contingency [Line Items]
Net operating losses	4,800
Federal
Income Tax Contingency [Line Items]
Net operating losses	124,115
Tax credits expected to expire unused	100
State
Income Tax Contingency [Line Items]
Net operating losses	9,149
Tax credits expected to expire unused	$ 9,000