SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)	3 Months Ended
	Mar. 31, 2017 USD ($) state $ / shares factor shares	Mar. 31, 2016 USD ($) $ / shares shares
Change in Accounting Estimate [Line Items]
State of incorporation	New Jersey
Number of states | state	20
Number of demographic factors | factor	3
Operating cash flows	$ 94,152,000	$ 88,728,000
Financing cash flows	241,636,000	(74,792,000)
Depreciation expense	71,563,000	69,406,000
Net earnings (loss)	$ 44,921,000	$ 40,158,000
Diluted net earnings (loss) per share | $ / shares	$ 0.33	$ 0.30
Antidilutive weighted-average common stock equivalents | shares	0	0
Service Life [Member]
Change in Accounting Estimate [Line Items]
Net earnings (loss)	$ 460,000
Diluted net earnings (loss) per share | $ / shares	$ 0.00
Accounting Standards Update 2016-09 [Member]
Change in Accounting Estimate [Line Items]
Tax reduction from net excess tax benefits from share based compensation	$ 15,513,000	$ 21,234,000
Increase in dilutive shares | shares		648,000
Restatement Adjustment [Member] | Service Life [Member]
Change in Accounting Estimate [Line Items]
Depreciation expense	$ (715,000)
Restatement Adjustment [Member] | Accounting Standards Update 2016-09, Gross Excess Tax Benefits Reclassified [Member]
Change in Accounting Estimate [Line Items]
Operating cash flows		$ 21,235,000
Financing cash flows		(21,235,000)
Restatement Adjustment [Member] | Accounting Standards Update 2016-09, Cash Paid For Share Withheld Reclassified [Member]
Change in Accounting Estimate [Line Items]
Operating cash flows		24,636,000
Financing cash flows		$ (24,636,000)