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Quarterly Data (Unaudited) - Schedule of Quarterly Financial Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]                      
Net sales $ 89,413 $ 85,266 $ 81,179 $ 86,011 $ 93,854 $ 88,256 $ 81,089 $ 74,139 $ 341,869 $ 337,339 $ 345,051
Gross profit 30,044 28,777 26,846 28,432 29,777 28,674 27,525 25,561 $ 114,099 $ 111,537 $ 113,194
Net income (loss) $ 8,397 $ 1,931 $ 5,515 $ 1,864 $ 931 $ (12,915) $ (901) $ 5,763      
Basic earnings (loss) per share $ 0.24 $ 0.06 $ 0.16 $ 0.05 $ 0.03 $ (0.37) $ (0.03) $ 0.17 $ 0.51 $ (0.21) $ (0.09)
Diluted earnings (loss) per share $ 0.24 $ 0.05 $ 0.15 $ 0.05 $ 0.03 $ (0.37) $ (0.03) $ 0.17 $ 0.50 $ (0.21) $ (0.09)