Annual report pursuant to Section 13 and 15(d)

Property and Equipment - Additional Information (Detail)

v2.4.0.6
Property and Equipment - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 30, 2012
Dec. 30, 2011
Dec. 26, 2010
Property, Plant and Equipment [Line Items]      
Depreciation expense $ 6,478 $ 4,407 $ 2,706