v2.3.0.15

Stock Based Compensation (Summary Of Options Granted) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010	Sep. 30, 2011		Sep. 30, 2010
Stock Based Compensation [Abstract]
Stock-based compensation expense	$ 9,129		$ 4,661	$ 17,648		$ 14,912
Outstanding, Shares arising out of options				15,989,356
Granted, Shares arising out of options				250,000
Forfeited, Shares arising out of options				(1,089,821)
Expired, Shares arising out of options				(164,922)
Exercised, Shares arising out of options				(946,840)
Outstanding, Shares arising out of options	14,037,773			14,037,773
Vested, exercisable and expected to vest, Shares arising out of options	13,353,241	[1]		13,353,241	[1]
Vested and exercisable, Shares arising out of options	7,904,260			7,904,260
Outstanding, Weighted average exercise price				$ 10.84
Granted, Weighted average exercise price	$ 15.34			$ 15.34
Forfeited, Weighted average exercise price	$ 14.36			$ 14.36
Expired, Weighted average exercise price	$ 15.49			$ 15.49
Exercised, Weighted average exercise price	$ 10.68			$ 10.68
Outstanding, Weighted average exercise price	$ 10.60			$ 10.60
Vested, exercisable and expected to vest, Weighted average exercise price	$ 10.60	[1]		$ 10.60	[1]
Vested and exercisable, Weighted average exercise price	$ 8.21			$ 8.21
Outstanding, Weighted average remaining contractual life (years)				6.4
Outstanding, Weighted average remaining contractual life (years)	5.7			5.7
Vested, exercisable and expected to vest, Weighted average remaining contractual life (years)				5.7	[1]
Vested and exercisable, Weighted average remaining contractual life (years)				4.9
Exercised, Aggregate intrinsic value				3,990
Outstanding, Aggregate intrinsic value	63,430			63,430
Vested, exercisable and expected to vest, Aggregate intrinsic value	60,774	[1]		60,774	[1]
Vested and exercisable, Aggregate intrinsic value	52,557			52,557
Weighted average grant date fair value of grants during the period				$ 6.21
Unrecognized stock-based compensation expenses	$ 20,479			$ 20,479
Weighted average remaining requisite vesting period, in years				1.92
[1] Options expected to vest reflect an estimated forfeiture rate.

X

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.

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The decrease in the number of shares that could be issued attributable to the lapse of rights to exercise previously issued stock options under the terms of the option agreements under the plan during the reporting period.

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