ACCUMULATED OTHER COMPREHENSIVE LOSS (Summary of Changes in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period	$ 3,772,598	$ 3,307,473	$ 3,332,988	$ 3,238,126
Other comprehensive income before reclassifications	(3,461)	(13,038)	(34,801)	(18,905)
Net current-period other comprehensive loss	(838)	(13,783)	(31,739)	(20,416)
Balance at the end of the period	3,739,703	3,351,767	3,739,703	3,351,767
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period	(60,273)	(14,759)	(29,372)	(8,126)
Balance at the end of the period	(61,111)	(28,542)	(61,111)	(28,542)
Gain reclassified from accumulated other comprehensive loss to net income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassifications	3,227	(92)	4,320	(220)
Terminated swap amortization
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassifications	$ (604)	$ (653)	$ (1,258)	$ (1,291)