STOCK-BASED COMPENSATION (Schedule of Assumed Stock Options) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	7 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Number of Shares
Exercised (in shares)		(7,780)
Balance, (in shares)		1,220
Weighted Average Exercise Price
Exercised (in dollars per share)		$ 22.47
Balance, (in dollars per share)		$ 23.08
Aggregate Intrinsic Value		$ 1,400
Employee Stock Option | Assumed in an acquisition
Number of Shares
Balance, (in shares)		128,708	0
Assumed in acquisitions (in shares)		61,897	540,179
Exercised (in shares)		(43,223)	(387,669)
Forfeited (in shares)		(2,217)	(23,802)
Balance, (in shares)	128,708	145,165	128,708	0
Weighted Average Exercise Price
Balance, (in dollars per share)		$ 335.83	$ 0
Assumed in acquisitions (in dollars per share)		$ 457.67	$ 260.96
Exercised (in dollars per share)		$ 342.39	$ 222.73
Forfeited (in dollars per share)		$ 517.91	$ 478.83
Balance, (in dollars per share)	$ 335.83	$ 383.05	$ 335.83	$ 0
Aggregate Intrinsic Value	106,386	109,914	106,386	0
Weighted Average Remaining Contractual Term	6 years 11 months	6 years 6 months		0 days
Vested and exercisable
Number of Shares		88,118
Weighted Average Exercise Price (in dollars per share)		$ 306.32
Aggregate Intrinsic Value		73,481
Weighted Average Remaining Contractual Term		5 years 8 months
Vested and exercisable and expected to vest thereafter, net of estimated forfeitures
Number of Shares		144,077
Weighted Average Exercise Price (in dollars per share)		$ 382.81
Aggregate Intrinsic Value		$ 109,124
Weighted Average Remaining Contractual Term		6 years 6 months