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Acquisitions Pro Forma Financial Results (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Business Combinations [Abstract] |  |  |  |
Pro forma net sales | $ 205,683 | $ 183,424 | $ 626,414 | $ 568,270
Pro forma income (loss) from continuing operations | (11,830) | (8,436) | (31,909) | (52,840)
Pro forma net income (loss) | $ (11,830) | $ 121,005 | $ (31,909) | $ 87,355
Basic income (loss) per share (in dollars per share) | $ (0.41) | $ (0.31) | $ (1.15) | $ (1.93)
Diluted income (loss) per share (in dollars per share) | $ (0.41) | $ (0.31) | $ (1.15) | $ (1.93)
Transaction costs not considered ongoing |  | $ 0 |  | $ 15,000

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- Definition The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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