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Equity Incentive Plan And Stock-Based Compensation (Narrative) (Detail) (USD $)
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3 Months Ended | 6 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jul. 01, 2012
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Jul. 01, 2012
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Mar. 25, 2012
Restricted Stock Units (RSUs) [Member]
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Dec. 25, 2011
Restricted Stock Units (RSUs) [Member]
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Dec. 26, 2010
Restricted Stock Units (RSUs) [Member]
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Mar. 25, 2012
Key Executive RSU [Member]
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Dec. 25, 2011
Key Executive RSU [Member]
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Dec. 26, 2010
Key Executive RSU [Member]
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Mar. 25, 2012
Key Executive RSU [Member]
Minimum [Member]
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Mar. 25, 2012
Key Executive RSU [Member]
Maximum [Member]
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Mar. 25, 2012
Key Executive RSUs (Certain Executives) [Member]
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Jul. 01, 2012
Key Executive RSUs (Certain Executives) [Member]
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Mar. 25, 2012
Key Executive RSUs (Certain Executives) [Member]
Minimum [Member]
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Mar. 25, 2012
Key Executive RSUs (Certain Executives) [Member]
Maximum [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||
| Vesting period | 3 years | 4 years | 4 years | 3 years | 4 years | 4 years | 2 years | |||||||
| vesting percentage time based in each year | 33.33% | 25.00% | 25.00% | 16.67% | 12.50% | 12.50% | 0.00% | |||||||
| % vesting subject to performance each year | 16.67% | 12.50% | 12.50% | 50.00% | 150.00% | 100.00% | 0.00% | 100.00% | ||||||
| Accelerated vesting on July 31, 2012 | 25.00% | 25.00% | ||||||||||||
| Unrecognized compensation | $ 54,500,000 | $ 54,500,000 | ||||||||||||
| Income tax benefit realized from stock option exercises | $ 0 | $ 0 | ||||||||||||