INCOME TAXES - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Line Items]
Reduction of deferred tax asset valuation allowance	$ 0.3
Tax benefit (deficit) recognized within income tax expense	0.4	$ (0.1)	$ (0.3)
Unrecognized tax benefits	$ 3.8	$ 4.3
State income tax returns | Minimum
Income Taxes [Line Items]
Tax examination period	3 years
State income tax returns | Maximum
Income Taxes [Line Items]
Tax examination period	5 years