SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) state	Jun. 30, 2016 USD ($) shares	Jun. 30, 2017 USD ($) state factor	Jun. 30, 2016 USD ($) shares
Change in Accounting Estimate [Line Items]
State of incorporation			New Jersey
Number of states | state	20		20
Number of demographic factors | factor			3
Operating cash flows			$ 155,222,000	$ 155,002,000
Financing cash flows			1,199,219,000	(151,224,000)
Accounting Standards Update 2016-09 [Member]
Change in Accounting Estimate [Line Items]
Tax reduction from net excess tax benefits from share based compensation	$ 1,245,000	$ 959,000	$ 16,758,000	$ 22,192,000
Increase in dilutive shares | shares		813,000		766,000
Restatement Adjustment [Member] | Accounting Standards Update 2016-09, Gross Excess Tax Benefits Reclassified [Member]
Change in Accounting Estimate [Line Items]
Operating cash flows				$ 23,749,000
Financing cash flows				(23,749,000)
Restatement Adjustment [Member] | Accounting Standards Update 2016-09, Cash Paid For Share Withheld Reclassified [Member]
Change in Accounting Estimate [Line Items]
Operating cash flows				28,721,000
Financing cash flows				$ (28,720,000)