SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) state	Sep. 30, 2016 USD ($) shares	Sep. 30, 2017 USD ($) state factor	Sep. 30, 2016 USD ($) shares
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
State of incorporation			New Jersey
Number of states | state	20		20
Number of demographic factors | factor			3
Operating cash flows			$ 399,535,000	$ 404,609,000
Financing cash flows			600,208,000	(273,756,000)
Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Tax reduction from net excess tax benefits from share based compensation	$ 4,001,000	$ 2,259,000	$ 20,759,000	$ 24,451,000
Increase in dilutive shares | shares		790,000		740,000
Restatement Adjustment [Member] | Accounting Standards Update 2016-09, Gross Excess Tax Benefits Reclassified [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating cash flows				$ 26,747,000
Financing cash flows				(26,747,000)
Restatement Adjustment [Member] | Accounting Standards Update 2016-09, Cash Paid For Share Withheld Reclassified [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating cash flows				32,414,000
Financing cash flows				$ (32,414,000)