DERIVATIVE AND HEDGING INSTRUMENTS - Summary of Derivative and Financial Instruments Designated as Hedging Instruments (Details) $ in Thousands	Dec. 31, 2018 USD ($) instrument	Dec. 31, 2017 USD ($)
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 29,344	$ 25,895
Derivative liability, fair value	4,529	0
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	29,344	25,895
Derivative liability, fair value	$ 96,229	99,588
Designated as Hedging Instrument \| Interest rate swap \| Cash Flow \| Accounts receivable, prepaid expenses and other assets, net
Derivatives, Fair Value [Line Items]
Derivative asset, count \| instrument	12
Derivative asset, fair value	$ 25,184	25,221
Designated as Hedging Instrument \| Interest rate swap \| Cash Flow \| Accounts payable and accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, count \| instrument	2
Derivative liability, fair value	$ 4,529	0
Designated as Hedging Instrument \| Cross currency interest rate swaps \| Net Investment \| Accounts receivable, prepaid expenses and other assets, net
Derivatives, Fair Value [Line Items]
Derivative asset, count \| instrument	2
Derivative asset, fair value	$ 4,160	674
Designated as Hedging Instrument \| CAD term loan \| Net Investment \| Term loans, net
Derivatives, Fair Value [Line Items]
Derivative liability, count \| instrument	1
Derivative liability, fair value	$ 91,700	$ 99,588

The number of derivative instruments of a particular derivative asset or group of derivative assets held by the entity.

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Fair value, after the 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 not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the 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 not subject to a master netting arrangement and not elected to be offset.

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The number of derivative instruments of a particular derivative liability or group of derivative liabilities held by the entity.

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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.

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