DERIVATIVE INSTRUMENTS - Fair Value of Derivative Instruments By Balance Sheet Location (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	$ 20,375,000	$ 28,281,000
Derivatives designated as hedges — Liabilities	27,074,000	31,124,000
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Notional amount	1,500,000,000.0	1,500,000,000.0
Interest Rate Swap \| Designated as Hedging Instrument \| Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	2,738,000	4,654,000
Interest Rate Swap \| Designated as Hedging Instrument \| Other assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	346,000	5,350,000
Interest Rate Swap \| Designated as Hedging Instrument \| Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	87,000	0
Interest Rate Swap \| Designated as Hedging Instrument \| Other liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	19,672,000	9,385,000
Cross-currency swap \| Designated as Hedging Instrument \| Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	6,849,000	7,615,000
Cross-currency swap \| Designated as Hedging Instrument \| Other liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	4,134,000	10,445,000
Cross-currency swap \| Net Investment Hedges \| Designated as Hedging Instrument \| Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	8,910,000	8,888,000
Cross-currency swap \| Net Investment Hedges \| Designated as Hedging Instrument \| Other assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	1,532,000	1,774,000
Cross-currency swap \| Net Investment Hedges \| Designated as Hedging Instrument \| Other liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	$ 3,181,000	$ 11,294,000

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

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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)
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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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

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313

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No definition available.

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