The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph A240

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The date when the equity-based award expires as specified in the award agreement, which may be presented in a variety of ways (for example, year, month and year, day, month and year, quarter of a year).

+ References

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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).

+ References

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The maximum vesting term 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.

+ References

No definition available.

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The minimum vesting term 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.

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- Definition

Equity-based compensation cost during the period with respect to the award, which will be recognized in income (as well as the total recognized tax benefit) or capitalized as part of the cost of an asset.

+ References

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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STOCK-BASED COMPENSATION (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, number	144,698,000	221,148,000
Share-based Compensation Arrangement by share-bases Payment Award, Award vesting Period	5 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date	P10Y
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost	$ 8.2	$ 7.2	$ 1.0
Total income tax benefit from compensation cost	$ 2.4	$ 2.7	$ 0.4
1992 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, number	6,000
2000 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, number	138,698
2010 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, number	6,000,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Minimum	P3Y
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Maximum	P5Y