INCOME TAXES - Income Tax Payments Refunds Net Operating Loss Carryforwards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Payments And Refunds
Federal and state income tax payments	$ 2,724	$ 39,100	$ 54,217
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
NOLs	283,776
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
NOLs	$ 535,603