Acquisitions and Strategic Investments - Summary of Unaudited Consolidated Results of Operations, Including Proforma Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
As Reported
NET SALES	$ 156,975	$ 136,086	$ 446,123	$ 403,745
Net income	$ 973	$ 4,818	$ 12,615	$ 17,393
Basic (in dollars per share)	$ 0.02	$ 0.11	$ 0.28	$ 0.40
Diluted (in dollars per share)	$ 0.02	$ 0.11	$ 0.28	$ 0.39
Pro Forma
Net Sales, Pro Forma		$ 144,344		$ 428,881
Net Income, Pro Forma		$ 673		$ 5,190
Basic, Pro Forma (in dollars per share)		$ 0.02		$ 0.12
Diluted, Pro Forma (in dollars per share)		$ 0.02		$ 0.12