Goodwill and Intangibles (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Finite-Lived Intangible Assets, Net
Finite-Lived Intangible Assets, Gross	$ 33,294	$ 31,894
Accumulated Amortization	(25,759)	(24,455)
Finite-Lived Intangible Assets, Net, Total	7,535	7,439
Intangible Assets and Accumulated Amortization
Intangible assets gross excluding goodwill	43,111	41,711
Total	17,352	17,256
Trademarks [Member]
Indefinite Lived Intangible Assets Net
Indefinite-Lived Intangible Assets	9,817	9,817
Trademarks and Tradenames [Member]
Finite-Lived Intangible Assets, Net
Finite-Lived Intangible Assets, Gross	10,891	10,891
Accumulated Amortization	(5,652)	(5,060)
Finite-Lived Intangible Assets, Net, Total	5,239	5,831
Patents and Technology [Member]
Finite-Lived Intangible Assets, Net
Finite-Lived Intangible Assets, Gross	15,038	15,038
Accumulated Amortization	(14,891)	(14,764)
Finite-Lived Intangible Assets, Net, Total	147	274
Other [Member]
Finite-Lived Intangible Assets, Net
Finite-Lived Intangible Assets, Gross	7,365	5,965
Accumulated Amortization	(5,216)	(4,631)
Finite-Lived Intangible Assets, Net, Total	$ 2,149	$ 1,334