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DERIVATIVE INSTRUMENTS - Fair Value of Derivative Instruments By Balance Sheet Location (Details) - USD ($) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Derivatives, Fair Value [Line Items] |  |
Reduction In notional amount of interest rate derivatives In next twelve months | $ 150,000,000.0 |
Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedges — Assets | 30,035,000 | $ 11,769,000
Derivatives designated as hedges — Liabilities | 9,545,000 | 15,134,000
Interest Rate Swap |  |
Derivatives, Fair Value [Line Items] |  |
Notional amount | 1,050,000,000 | 1,050,000,000
Interest Rate Swap | Designated as Hedging Instrument | Prepaid expenses and other current assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedges — Assets | 4,817,000 | 1,521,000
Interest Rate Swap | Designated as Hedging Instrument | Other assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedges — Assets | 17,527,000 | 2,491,000
Interest Rate Swap | Designated as Hedging Instrument | Accrued expenses and other current liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedges — Liabilities | 0 | 1,845,000
Interest Rate Swap | Designated as Hedging Instrument | Other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedges — Liabilities | 0 | 1,575,000
Cross-currency swap | Designated as Hedging Instrument | Prepaid expenses and other current assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedges — Assets | 7,691,000 | 7,757,000
Cross-currency swap | Designated as Hedging Instrument | Other assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedges — Assets | 0 | 0
Cross-currency swap | Designated as Hedging Instrument | Accrued expenses and other current liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedges — Liabilities | 0 | 0
Cross-currency swap | Designated as Hedging Instrument | Other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedges — Liabilities | $ 9,545,000 | $ 11,714,000

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109247956&loc=SL51823488-111719 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 + Details
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