LONG-TERM DEBT - Interest Rate on Borrowings Outstanding (Details)	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Weighted average interest rate	6.50%	7.20%
ABL Revolver
Debt Instrument [Line Items]
Interest rate	3.50%	4.00%
Term Loan B
Debt Instrument [Line Items]
Interest rate	6.50%	7.30%
Promissory Note
Debt Instrument [Line Items]
Interest rate	0.00%	2.90%