Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets, Gross [Abstract]
Finite-Lived Customer Lists, Gross	$ 33,607	$ 33,559
Finite-Lived Trademarks, Gross	6,830	6,838
Formulations And Product Technology	5,808	5,808
Other Finite-Lived Intangible Assets, Gross	5,543	5,544
Total	51,788	51,749
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Finite Lived Intangible Assets Accumulated Amortization Customer Lists	11,234	10,221
Finite Lived Intangible Assets Accumulated Amortization Trademarks	3,532	3,202
Finite Lived Intangible Assets Accumulated Amortization Formulations	3,802	3,709
Finite Lived Intangible Assets Accumulated Amortization Other	4,663	4,445
Total	23,231	21,577
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
For the year ended December 31, 2014	3,257
For the year ended December 31, 2015	3,257
For the year ended December 31, 2016	2,781
For the year ended December 31, 2017	2,121
For the year ended December 31, 2018	2,097
For the year ended December 31, 2019	2,097
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract]
Indefinite-Lived Trademarks	$ 1,100	$ 1,100