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DERIVATIVE INSTRUMENTS - Fair Value of Derivative Instruments By Balance Sheet Location (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	$ 21,165,000	$ 28,281,000
Derivatives designated as hedges — Liabilities	61,017,000	31,124,000
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Current notional amount	1,300,000,000	1,300,000,000.0
Interest Rate Swap | Designated as Hedging Instrument | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	276,000	4,654,000
Interest Rate Swap | Designated as Hedging Instrument | Other assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	0	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	3,024,000	0
Interest Rate Swap | Designated as Hedging Instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	40,410,000	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	6,800,000	7,615,000
Cross-currency swap | Designated as Hedging Instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	7,546,000	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	9,047,000	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	5,042,000	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	$ 10,037,000	$ 11,294,000

X

- 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
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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X

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or 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 liabilities elected not to be offset. Excludes liabilities 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 860
-SubTopic 20
-Section 50
-Paragraph 4D
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X

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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