Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets, Gross [Abstract]
Finite-Lived Customer Lists, Gross	$ 33,371	$ 32,356
Finite-Lived Trademarks, Gross	6,778	6,760
Formulations And Product Technology	5,278	5,278
Other Finite-Lived Intangible Assets, Gross	5,463	5,467
Total	50,890	49,861
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Finite Lived Intangible Assets Accumulated Amortization Customer Lists	8,684	8,192
Finite Lived Intangible Assets Accumulated Amortization Trademarks	2,732	2,548
Finite Lived Intangible Assets Accumulated Amortization Formulations	3,501	3,423
Finite Lived Intangible Assets Accumulated Amortization Other	4,101	3,989
Total	19,018	18,152
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
For the year ended December 31, 2013	3,395
For the year ended December 31, 2014	3,164
For the year ended December 31, 2015	3,164
For the year ended December 31, 2016	2,684
For the year ended December 31, 2017	2,030
For the year ended December 31, 2018	2,014
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract]
Indefinite-Lived Trademarks	$ 1,100	$ 1,100

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life - Customer Lists

+ References

No definition available.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life - Formulations and product technology.

+ References

No definition available.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life - Other intangible assets.

+ References

No definition available.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life - Trademarks

+ References

No definition available.

+ Details

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- Definition

Amount of amortization expense expected to be recognized during the current fiscal year, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

No definition available.

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date for the formulations and product technology.

+ References

No definition available.

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date of an asset comprised of customer information, acquired in a business combination or other transaction, having a finite beneficial life.

+ References

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a specified period of time.

+ References

+ Details

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- Definition

Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit.

+ References

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit.

+ References

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