STOCK-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2011

STOCK-BASED COMPENSATION

Schedule of weighted-average assumptions used to estimate the fair value of options granted

	Three-Months Ended September 30,		Nine-Months Ended September 30,
	2011	2010	2011	2010
Dividend yield	0.0 %	0.0 %	0.0 %	0.0 %
Expected volatility	52.7 %	58.2 %	54.1 %	58.9 %
Risk-free interest rate	1.3 %	1.7 %	1.7 %	2.1 %
Expected term	5.7 Years	5.9 Years	5.9 Years	5.8 Years

Summary of activities with respect to its stock option plans

Options	Number of Shares (In Thousands)		Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (In Years)	Aggregate Intrinsic Value
Balance at January 1, 2011	9,749		$	17.18	5.2	$	342,241
Granted 01/01/11 - 03/31/11	59		$	57.61
Granted 04/01/11 - 06/30/11	52		$	70.00
Granted 07/01/11 - 09/30/11	55		$	80.90
Exercised	(524	)	$	34.03
Cancelled or forfeited	(66	)	$	37.25
Outstanding at September 30, 2011	9,325		$	17.02	4.4	$	655,335
Vested and expected to vest in the future at September 30, 2011	8,972		$	16.06	4.2	$	639,106
Exercisable at September 30, 2011	6,959		$	9.43	3.2	$	541,884

Summary of activities with respect to non-vested restricted stock awards and non-vested restricted stock units

	Number of Shares (in thousands)		Weighted Average Grant-Date Fair Value
Non-vested at January 1, 2011	6		$	38.40
Granted 01/01/11 - 03/31/11	-		$	-
Granted 04/01/11 - 06/30/11	28		$	71.76
Granted 07/01/11 - 09/30/11	328		$	84.08
Vested	(8	)	$	69.66
Forfeited/cancelled	-		$	-
Non-vested at September 30, 2011	354		$	83.19