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LONG TERM DEBT AND CAPITAL LEASES - Schedule of Cash Flow Hedges Related to Derivative Instruments on the Balance Sheet (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Debt Instrument [Line Items] |  |  |
Cash flow hedge derivatives, assets | $ 820 | $ 401 |
Cash flow hedge derivatives, liabilities | 1,942 | 123 |
Accumulated other comprehensive (loss) income, net - interest rate swaps | (1,476) | 267 | $ 0
Other current assets | Designated as hedging instrument | Interest rate swaps |  |  |
Debt Instrument [Line Items] |  |  |
Cash flow hedge derivatives, assets | 338 | 0 |
Other non-current assets | Designated as hedging instrument | Interest rate swaps |  |  |
Debt Instrument [Line Items] |  |  |
Cash flow hedge derivatives, assets | 482 | 401 |
Other accrued liabilities | Designated as hedging instrument | Interest rate swaps |  |  |
Debt Instrument [Line Items] |  |  |
Cash flow hedge derivatives, liabilities | 387 | 123 |
Other long-term liabilities | Designated as hedging instrument | Interest rate swaps |  |  |
Debt Instrument [Line Items] |  |  |
Cash flow hedge derivatives, liabilities | 1,555 | 0 |
Accumulated other comprehensive (loss) income, net | Designated as hedging instrument | Interest rate swaps |  |  |
Debt Instrument [Line Items] |  |  |
Accumulated other comprehensive (loss) income, net - interest rate swaps | (1,196) | 278 |
Accumulated other comprehensive (loss) income, net - interest rate swaps - tax provision | (112) | (112) |
Accumulated other comprehensive (loss) income, net | $ (1,308) | $ 166 |

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