Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Finite Lived Intangible Assets Gross [Abstract]
Finite Lived Customer Lists, Gross	$ 71,454	$ 67,435
Trademarks, Formulations And Product Technology	31,436	28,955
Other Finite Lived Intangible Assets, Gross	6,023	5,788
Total	108,913	102,178
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Accumulated Amortization	36,942	29,991
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Accumulated Amortization	20,043	15,806
Trademarks Formulations And Product Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Accumulated Amortization	11,748	9,620
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Accumulated Amortization	$ 5,151	$ 4,565