Annual report pursuant to Section 13 and 15(d)

Restricted Stock Activity (Detail)

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Restricted Stock Activity (Detail) (USD $)
12 Months Ended
Dec. 29, 2012
Employee Restricted Equity Awards Vesting Activity [Line Items]  
Nonvested shares, Beginning balance 180,337
Granted 12,500
Dividend equivalents 3,443
Vested (16,802)
Forfeited (9,368)
Nonvested shares, Ending balance 170,110
Nonvested shares, Beginning balance $ 93.41
Granted $ 140.54
Dividend equivalents $ 149.12
Vested $ 76.98
Forfeited $ 97.27
Nonvested shares, Ending balance $ 99.41