Acquisitions - Summary of Unaudited Consolidated Results of Operations, Including Proforma Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
As Reported
Net Sales	$ 186,549	$ 151,071	$ 357,618	$ 289,148
Net income	$ 9,483	$ 7,290	$ 24,286	$ 11,641
Basic (in dollars per share)	$ 0.19	$ 0.16	$ 0.51	$ 0.26
Diluted (in dollars per share)	$ 0.19	$ 0.16	$ 0.50	$ 0.26
Pro Forma
Net Sales, Pro Forma		$ 170,878	$ 360,378	$ 327,268
Net Income, Pro Forma		$ 4,528	$ 12,516	$ 15,974
Basic, Pro Forma (in dollars per share)		$ 0.10	$ 0.26	$ 0.36
Diluted, Pro Forma (in dollars per share)		$ 0.10	$ 0.26	$ 0.36

Per basic share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

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