INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Tax Examination [Line Items]
Income tax provision (benefit)	$ (11,698)	$ 4,900	$ (17,638)	$ (7,062)
Effective income tax rate (as a percent)			21.00%
Unrecognized tax benefits, including interest	4,200		$ 4,200		$ 4,100
Unrecognized tax benefits that if subsequently recognized would reduce income tax expense	4,100		4,100		$ 4,000
Decrease in unrecognized tax benefits is reasonably possible	500		500
Federal and State Tax Credits
Income Tax Examination [Line Items]
Gross deferred tax asset	190,100		190,100
Portion of deferred tax assets that will be utilized upon future reversal of deferred tax liabilities	65,200		65,200
Portion of deferred tax assets that will be utilized based on forecasts of future taxable income	$ 124,900		$ 124,900