Acquisitions Pro Forma Financial Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Business Combinations [Abstract]
Transaction costs not considered ongoing		$ 0		$ 14,800
Pro forma net sales	$ 210,902	193,578	$ 420,731	384,846
Pro forma income (loss) from continuing operations	(12,017)	(29,092)	(20,078)	(44,238)
Pro forma net income (loss)	$ (12,017)	$ (23,856)	$ (20,078)	$ (33,484)
Basic income (loss) per share (in dollars per share)	$ (0.43)	$ (1.06)	$ (0.73)	$ (1.62)
Diluted income (loss) per share (in dollars per share)	$ (0.43)	$ (1.06)	$ (0.73)	$ (1.62)

Business Combination, Costs Expensed Not Considered Ongoing

No definition available.

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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

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- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

+ Details

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- Definition

Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

+ References

+ Details

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

+ Details

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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- References

No definition available.

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