STOCK BASED COMPENSATION - Stock Option Activity (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Number of Options
Outstanding at beginning of year	5,540,482
Granted	854,778
Exercised	(182,867)
Forfeited	(28,088)
Canceled or expired	(1,049)
Outstanding at March 31, 2014	6,183,256
Exercisable at March 31, 2014	3,417,439
Vested and expected to vest at March 31, 2014	5,884,031
Weighted Average Exercise Price per Share
Outstanding at beginning of year	$ 70.29
Granted	$ 115.70
Exercised	$ 51.61
Forfeited	$ 84.58
Canceled or expired	$ 65.11
Outstanding at March 31, 2014	$ 77.06
Exercisable at March 31, 2014	$ 62.02
Vested and expected to vest at March 31, 2014	$ 75.89
Weighted Average Remaining Contractual Life
Outstanding at March 31, 2014	6 years 7 months 2 days
Exercisable at March 31, 2014	5 years 6 months 15 days
Total Aggregate Intrinsic Value
Outstanding at March 31, 2014	$ 227,883
Exercisable at March 31, 2014	$ 176,414