FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Carrying Value and Estimated Fair Value of the Term Loan Facility and Notes (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Actual and estimated fair values of the financial instruments
Derivative liability	$ 6,940	$ 3,210
FILO Asset-based Term Loan Facility | FILO Term Loan | Level 2 | Carrying Amount
Actual and estimated fair values of the financial instruments
Long term debt	266,814	264,086
FILO Asset-based Term Loan Facility | FILO Term Loan | Level 2 | Fair Value
Actual and estimated fair values of the financial instruments
Long term debt	265,851	260,125
Notes (net of $3.9 million and $11.5 million conversion feature and $0.5 million and $1.6 million discount) | Notes (net of $3.9 million and $11.5 million conversion feature and $0.5 million and $1.6 million discount) | Level 2 | Carrying Amount
Actual and estimated fair values of the financial instruments
Long term debt	154,675	175,504
Notes (net of $3.9 million and $11.5 million conversion feature and $0.5 million and $1.6 million discount) | Notes (net of $3.9 million and $11.5 million conversion feature and $0.5 million and $1.6 million discount) | Level 2 | Fair Value
Actual and estimated fair values of the financial instruments
Long term debt	148,488	131,628
Forward contracts | Level 2 | Carrying Amount
Actual and estimated fair values of the financial instruments
Derivative asset	0	88,942
Forward contracts | Level 2 | Fair Value
Actual and estimated fair values of the financial instruments
Derivative asset	0	88,942
Interest rate swaps | Level 2 | Carrying Amount
Actual and estimated fair values of the financial instruments
Derivative liability	6,940	3,210
Interest rate swaps | Level 2 | Fair Value
Actual and estimated fair values of the financial instruments
Derivative liability	6,940	3,210
Tranche B-1 | Amended Term Loan Facility Due March 2021 | Term Loan | Level 2 | Carrying Amount
Actual and estimated fair values of the financial instruments
Long term debt	0	147,289
Tranche B-1 | Amended Term Loan Facility Due March 2021 | Term Loan | Level 2 | Fair Value
Actual and estimated fair values of the financial instruments
Long term debt	0	145,080
Tranche B-2 | Amended Term Loan Facility Due March 2021 | Term Loan | Level 2 | Carrying Amount
Actual and estimated fair values of the financial instruments
Long term debt	441,500	554,760
Tranche B-2 | Amended Term Loan Facility Due March 2021 | Term Loan | Level 2 | Fair Value
Actual and estimated fair values of the financial instruments
Long term debt	$ 414,321	$ 511,766