DERIVATIVE AND HEDGING INSTRUMENTS - Effect of Derivative Financial Instruments on the Condensed Consolidated Statements of Income and Condensed Consolidated Statements of Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain in other comprehensive (loss) income, cash flow hedges and net investment hedges	$ (11,194)	$ (10,031)	$ (39,659)	$ (24,801)
Interest rate products
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain recognized in other comprehensive (loss) income, cash flow hedges	(6,182)	(8,126)	(46,647)	(19,737)
Interest rate products | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated other comprehensive income into income, cash flow hedges	(2,398)	1,695	(2,165)	3,608
Foreign currency products
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain recognized in other comprehensive (loss) income, net investment hedges	(1,599)	(42)	2,588	(1,276)
CAD term loan
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain recognized in other comprehensive (loss) income, net investment hedges	$ (3,413)	$ (1,863)	$ 4,400	$ (3,788)