STOCK BASED COMPENSATION - Stock Option Activity (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013
Number of Options
Outstanding at beginning of period	5,543,664
Granted	1,050,080
Canceled or expired	(705,247)
Outstanding at September 30, 2013	(107,933)
Outstanding at end of period	5,780,564
Exercisable at end of period	2,919,271
Vested and expected to vest in the future at end of period	5,024,369
Weighted Average Exercise Price per Share
Outstanding at beginning of period	$ 61.69
Granted	$ 96.94
Exercised	$ 48.68
Canceled or expired	$ 75.19
Outstanding at September 30, 2013	$ 69.43
Exercisable at end of period	$ 56.35
Vested and expected to vest in the future at end of period	$ 66.71
Weighted Average Remaining Contractual Life (in years)
Outstanding at end of period	6 years 8 months 27 days
Exercisable at end of period	5 years 4 months 28 days
Vested and expected to vest in the future at end of period	6 years 5 months 23 days
Aggregate Intrinsic Value
Outstanding at end of period	$ 265,744,014
Exercisable at end of period	172,389,576
Vested and expected to vest in the future at end of period	$ 244,644,342