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Acquisition - Unaudited Pro forma Consolidated Results of Operations (Detail) - Quantum Global Technologies, LLC [Member] - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2018
Sep. 29, 2017
Sep. 28, 2018
Sep. 29, 2017
Business Acquisition [Line Items]        
Net sales $ 269,588 $ 298,180 $ 992,514 $ 836,246
Net income $ (3,343) $ 16,438 $ 31,321 $ 46,903
Basic earnings per share $ (0.09) $ 0.49 $ 0.82 $ 1.41
Diluted earnings per share $ (0.09) $ 0.48 $ 0.81 $ 1.37