Stock Plans (Narrative) (Details) (USD $)
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3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | |||||||||||||||
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Sep. 29, 2013
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Sep. 30, 2012
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Sep. 29, 2013
plan
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Sep. 30, 2012
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Sep. 29, 2013
Employee Stock Purchase Plan [Member]
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Sep. 29, 2013
Stock Awards [Member]
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Jun. 30, 2013
Stock Awards [Member]
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Sep. 30, 2012
Stock Awards [Member]
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Jul. 01, 2012
Stock Awards [Member]
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Sep. 29, 2013
Stock Awards [Member]
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Sep. 30, 2012
Stock Awards [Member]
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Sep. 29, 2013
Performance Units [Member]
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Sep. 30, 2012
Performance Units [Member]
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Sep. 29, 2013
Performance Units [Member]
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Sep. 30, 2012
Performance Units [Member]
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Sep. 29, 2013
Restricted Stock Awards [Member]
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Sep. 30, 2012
Restricted Stock Awards [Member]
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Sep. 29, 2013
Restricted Stock Awards [Member]
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Sep. 30, 2012
Restricted Stock Awards [Member]
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Dec. 30, 2012
Restricted Stock Awards [Member]
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Sep. 29, 2013
Stock Options [Member]
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Sep. 30, 2012
Stock Options [Member]
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Sep. 29, 2013
Stock Options [Member]
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Sep. 30, 2012
Stock Options [Member]
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Sep. 29, 2013
2009 Incentive Plan [Member]
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||||||||||||||||||
Number of Former Stock-based Compensation Plans | 1 | ||||||||||||||||||||||||
Shares authorized under plan | 5,000,000 | 10,000,000 | |||||||||||||||||||||||
Total income tax benefit recognized for stock-based compensation | $ 1,200,000 | $ 1,600,000 | $ 3,600,000 | $ 5,000,000 | |||||||||||||||||||||
Stock-based compensation costs capitalized as part of inventory | 300,000 | 300,000 | |||||||||||||||||||||||
Options related excess tax benefit, classified as a financing cash activity | 0 | 1,767,000 | |||||||||||||||||||||||
Weighted-average grant-date fair value of options | $ 0.00 | $ 7.71 | $ 10.82 | $ 7.36 | |||||||||||||||||||||
Total intrinsic value of options exercised | 6,200,000 | 3,900,000 | 10,300,000 | 9,100,000 | |||||||||||||||||||||
Cash received from option exercises | 15,300,000 | 22,900,000 | |||||||||||||||||||||||
Shares/units granted | 89,521 | 3,263 | 3,580 | 955 | 98,056 | 122,675 | 277,000 | ||||||||||||||||||
Weighted-average grant-date fair value of stock granted (per share) | $ 30.51 | $ 30.65 | $ 27.87 | $ 34.06 | $ 26.18 | $ 36.11 | $ 27.06 | $ 33.74 | $ 25.85 | ||||||||||||||||
Fair value of restricted stock awards vested | 400,000 | 100,000 | 7,600,000 | 4,200,000 | |||||||||||||||||||||
Total pre-tax stock-based compensation expense | 3,781,000 | 5,101,000 | 11,423,000 | 15,352,000 | 0 | 0 | 700,000 | 700,000 | 1,000,000 | 1,900,000 | 1,900,000 | 4,900,000 | 1,700,000 | 1,900,000 | 5,600,000 | 6,100,000 | 1,100,000 | 1,200,000 | 3,200,000 | 3,700,000 | |||||
Awards/units outstanding | 282,044 | 282,044 | 661,000 | 661,000 | 781,000 | ||||||||||||||||||||
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent | 5,400,000 | 5,400,000 | |||||||||||||||||||||||
Total unrecognized compensation cost, net of estimated forfeitures, related to nonvested stock, granted | $ 10,800,000 | $ 10,800,000 | $ 6,800,000 | $ 6,800,000 | |||||||||||||||||||||
Weighted-average period for recognition of unrecognized compensation cost, years | 1 year 5 months | 1 year 11 months | |||||||||||||||||||||||
Shares available for grant under employee stock purchase plan | 1,100,000 |