v2.3.0.15

Benefit Plans (Details 5)	3 Months Ended		9 Months Ended
	Sep. 30, 2011 Year	Oct. 01, 2010 Year	Sep. 30, 2011 Year	Oct. 01, 2010 Year
Employee Stock Option [Member]
Weighted average assumptions:
Expected life (years)	4.75	3.52	4.75	4.00
Volatility	53.00%	55.00%	54.00%	56.00%
Risk-free interest rate	1.20%	1.10%	2.00%	1.60%
Dividend yield	0.00%	0.00%	0.00%	0.00%
Employee Stock Purchase Plan Awards [Member]
Weighted average assumptions:
Expected life (years)	0.50	0.50	0.50	0.50
Volatility	46.00%	43.00%	45.00%	46.00%
Risk-free interest rate	0.10%	0.40%	0.20%	0.40%
Dividend yield	0.00%	0.00%	0.00%	0.00%

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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-Number 123R

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The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section D

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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The range of expected volatilities used and the weighted-average expected volatility for an entity using a valuation technique with different volatilities during the contractual term.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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