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Acquisitions - Summary of Annual Unaudited Pro Forma Financial Information (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
$ / shares
Business Acquisition Pro Forma Information [Abstract]  
Net sales $ 937,043
Income from continuing operations $ 1,585
Income per share from continuing operations | $ / shares $ 0.04