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Income Taxes - U.S. and Foreign Components of Income before Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 25, 2015
Dec. 26, 2014
Dec. 27, 2013
Income Tax Disclosure [Abstract]      
U.S. operations $ (10,910) $ (452) $ (906)
Foreign operations 14,517 16,782 13,505
Income before provision for income taxes $ 3,607 $ 16,330 $ 12,599