Acquisitions (Details) (USD $)	9 Months Ended		0 Months Ended			3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jan. 02, 2014 EOGA [Member]	Apr. 02, 2014 SiteLark [Member]	May 10, 2013 Florida Chemical [Member]	Sep. 30, 2014 Florida Chemical [Member]	Sep. 30, 2014 Florida Chemical [Member]
Business Acquisition [Line Items]
Percent of membership interests acquired			100.00%	100.00%
Consideration transferred, cash payments			$ 6,400,000	$ 400,000
Consideration transferred, common stock issued, shares			94,354	5,327
Total purchase price					106,400,000
Final adjustment related to acquisition, increase in current deferred tax assets	$ 1,162,000	$ 0				$ 1,200,000	$ 1,162,000