DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Notional Amounts) (Details) $ in Thousands, $ in Millions	Mar. 31, 2018 USD ($)	Mar. 31, 2018 NZD ($)	Dec. 31, 2017 USD ($)
Foreign currency exchange contracts
Derivatives, Fair Value [Line Items]
Notional Amount		$ 37
Designated as Hedging Instrument | Cash Flow Hedging | Foreign currency exchange contracts
Derivatives, Fair Value [Line Items]
Notional Amount	$ 87,400		$ 107,400
Designated as Hedging Instrument | Cash Flow Hedging | Foreign currency option contracts
Derivatives, Fair Value [Line Items]
Notional Amount	34,000		48,000
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swaps
Derivatives, Fair Value [Line Items]
Notional Amount	650,000		650,000
Designated as Hedging Instrument | Net Investment Hedging | Foreign currency exchange contracts
Derivatives, Fair Value [Line Items]
Notional Amount	26,788		0
Not Designated as Hedging Instrument | Foreign currency exchange contracts
Derivatives, Fair Value [Line Items]
Notional Amount	$ 25,883		$ 18,439