v2.4.0.6

STOCK-BASED COMPENSATION (Details 3) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Restricted and deferred stock units
Shares
Outstanding at the beginning of the period (in shares)	716,907
Granted (in shares)	89,637
Vested and released (in shares)	(3,975)
Forfeited (in shares)	(2,338)
Outstanding at the end of the period (in shares)	800,231
Vested or expected to vest at the end of the period (in shares)	769,748
Weighted Average Remaining Contractual Terms
Outstanding at the end of the period	1 year 3 months 18 days
Vested or expected to vest at the end of the period	1 year 3 months 18 days
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period (in dollars per share)	$ 27.86
Granted (in dollars per share)	$ 38.26
Vested and released (in dollars per share)	$ 17.62
Forfeited (in dollars per share)	$ 26.62
Outstanding at the end of the period (in dollars per share)	$ 29.08
Vested or expected to vest at the end of the period (in dollars per share)	$ 29.18
Aggregate Intrinsic Value
Outstanding at the end of the period (in dollars)	$ 49.7
Vested or expected to vest at the end of the period (in dollars)	47.8
Total intrinsic value of share awards vested (in dollars)	$ 0.2	$ 0.1
Restricted and deferred stock units | Minimum
Aggregate Intrinsic Value
Vesting period	1 year
Restricted and deferred stock units | Maximum
Aggregate Intrinsic Value
Vesting period	3 years
PRSUs | Minimum
Aggregate Intrinsic Value
Percentage multiplied to target award for determining the number of shares subject to award	0.00%
PRSUs | Maximum
Aggregate Intrinsic Value
Percentage multiplied to target award for determining the number of shares subject to award	150.00%

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- Definition

Represents the aggregate intrinsic value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units, as calculated by applying the disclosed pricing methodology.

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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 equity-based awards other than stock (or unit) option plans that vested during the period.

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Period 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, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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 fair value at grant date for nonvested equity-based awards issued 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 number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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