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COMMITMENTS AND CONTINGENCIES (Fair Value Supply Agreement) (Details) - Level 3 - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Accrued Expenses And Other Current Liabilities | Supply Agreement Liability, Short-term |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Transfer from long-term to current potion | $ 0 |
Accrued Expenses And Other Current Liabilities | Supply Agreement Liability, Short-term | Selling, general and administrative |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Loss from increase in fair value | 0 |
Other Noncurrent Liabilities | Supply Agreement Liability, Long-term |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Payments | 0 |
Transfer from long-term to current potion | 0 |
Commitments | Accrued Expenses And Other Current Liabilities | Supply Agreement Liability, Short-term |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, Beginning of Period | 166 | $ 1,991
Payments | (166) | (2,000)
Transfer from long-term to current potion |  | 161
Balance, End of Period | 0 | 166
Commitments | Accrued Expenses And Other Current Liabilities | Supply Agreement Liability, Short-term | Selling, general and administrative |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Loss from increase in fair value |  | 14
Commitments | Accrued Expenses And Other Current Liabilities | Supply Agreement Liability, Short-term | Goodwill |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Other |  | 0
Commitments | Accrued Expenses And Other Current Liabilities | Above Market Supply Agreement Liability, Short-term |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, Beginning of Period | 0 | 0
Payments | (113) |
Transfer from long-term to current potion | 3,273 |
Loss from increase in fair value | (519) |
Balance, End of Period | 2,641 | 0
Commitments | Other Noncurrent Liabilities | Supply Agreement Liability, Long-term |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, Beginning of Period | 0 | 161
Transfer from long-term to current potion |  | (161)
Balance, End of Period | 0 | 0
Commitments | Other Noncurrent Liabilities | Above Market Supply Agreement Liability, Long-term |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, Beginning of Period | 2,648 | 931
Payments | (415) | (47)
Transfer from long-term to current potion | (3,273) |
Balance, End of Period | 0 | 2,648
Commitments | Other Noncurrent Liabilities | Above Market Supply Agreement Liability, Long-term | Selling, general and administrative |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Loss from increase in fair value | $ 1,040 | 1,083
Commitments | Other Noncurrent Liabilities | Above Market Supply Agreement Liability, Long-term | Goodwill |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Other |  | $ 681

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