FRESH-START ACCOUNTING - Net cash payments (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended	12 Months Ended
	Oct. 01, 2019	Dec. 31, 2019	Oct. 01, 2019	Dec. 31, 2018	Dec. 31, 2017
Sources:
Proceeds from Senior Credit Agreement	$ 130,000
Proceeds from Existing Equity Interests Rights Offering	5,779
Total Sources	285,929
Uses:
Payment of Predecessor Credit Agreement principal, accrued interest, and fees	(226,580)
Repayments of Debt	35,174
Funding of professional fee escrow and cash collateral account	(13,839)
Payment of debt issuance costs on Senior Credit Agreement	(8,764)
Debt issuance costs		$ (1,471)	$ (8,764)	$ (4,334)	$ (17,799)
Payment of professional fees and other	(3,035)
Total Uses	(287,392)
Total Sources and Uses	(1,463)
Debt Issuance Costs, Gross	10,200		10,200
Restructuring Advisor Fee Prepaid	3,100
Restructuring Advisor Fee Payable	7,700		$ 7,700
Payments Of Accrued Interest And Fees	3,500
Payments Of Professional Fees	1,500
Senior Noteholder Rights Offering
Sources:
Proceeds from Existing Equity Interests Rights Offering	150,150
Senior revolving credit facility
Uses:
Repayments of Debt	$ 223,200