v2.3.0.11

Equity Incentive Plans (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2011
Number of stock based compensation plans	2
Closing stock price	$ 26.09
Equity Incentive Plan [Member]
Shares issuable under equity incentive plans	6,400,000
Stock Options [Member]
Stock options expiration in years	10
Vesting periods in years	five
Options exercisable or expected to vest, options	7,251,079
Fair value of options vested during period	$ 4.7
Stock options exercised, intrinsic value	12.2
Weighted average exercise price, outstanding	$ 12.65
Weighted average remaining contractual life of options	6.0
Outstanding stock options, intrinsic value	97.7
Expected to vest stock options, intrinsic value	97.5
Exercisable stock options, intrinsic value	70.8
Stock options exercised during period	694,744
Restricted Stock Units (RSUs) [Member]
Vesting periods in years	five
Number of shares that restricted stock units convert into on the applicable vesting date	1
RSUs granted to employees and directors	816,674
Forfeiture rates used for grants to employees	5.00%
Forfeiture rates used for grants to executive officers	0.00%
Options exercisable or expected to vest	790,939
Weighted average remaining contractual life of restricted stock	4.5
Restricted Stock [Member]
Vesting periods in years	five
Options exercisable or expected to vest	111,000
Fair value of restricted shares vested during period	$ 1.0
Weighted average remaining contractual life of restricted stock	2.1

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Forfeiture Rates Used For Grants to Employees

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Number Of Share Based Compensation Plans

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The total grant-date fair value of options vested during the reporting period as calculated by applying the disclosed option pricing methodology.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest equity grants other than options outstanding can be converted under the plan.

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The additional number of shares (or other type of equity) approved (usually by shareholders and board of directors) via subsequent amendments and adjustments, for awards through the stock-based compensation plans.

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Description of the period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year).

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average period between the balance sheet date and expiration for equity-based awards other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan), which may be expressed in a decimal value for number of years.

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The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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 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 total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices pertaining to options outstanding under the plan as of the balance sheet date.

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As of the balance sheet date, the total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of fully vested and expected to vest options outstanding.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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The weighted-average period between the balance sheet date and expiration date for fully vested and expected to vest options outstanding, which may be expressed in a decimal value for number of years.

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Number of share options (or share units) exercised during the current period.

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