Quarterly report pursuant to Section 13 or 15(d)

Basic and Diluted Weighted-Average Shares Outstanding - Summary of Basic and Diluted Weighted-Average Shares Outstanding (Detail)

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Basic and Diluted Weighted-Average Shares Outstanding - Summary of Basic and Diluted Weighted-Average Shares Outstanding (Detail)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Earnings Per Share [Abstract]        
Weighted average shares-Basic 17,457 17,134 17,421 17,095
Net effect of dilutive stock options 927 974 846 1,029
Weighted average shares-Diluted 18,384 18,108 18,267 18,124