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Reconciliation of Numerator and Denominator Used to Calculate Basic Earnings per Share and Diluted Earnings per Share from Continuing Operations (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2020
Sep. 30, 2019
Sep. 28, 2020
Sep. 30, 2019
Earnings Per Share [Abstract]        
Net (loss) income from continuing operations $ (61,472) $ 2,393 $ (55,346) $ 21,124
Basic weighted average shares 106,729 105,492 106,130 105,092
Dilutive effect of performance-based restricted stock units, restricted stock units and stock options   982   973
Diluted shares 106,729 106,474 106,130 106,065
(Loss) earnings per share:        
Basic $ (0.58) $ 0.02 $ (0.52) $ 0.20
Diluted $ (0.58) $ 0.02 $ (0.52) $ 0.20