Goodwill and Intangible Assets (Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 37,303	$ 31,469
Finite-Lived Intangible Assets, Accumulated Amortization	(13,010)	(10,215)
Finite-Lived Intangible Assets, Net	24,293	21,254
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	7,488	6,455
Finite-Lived Intangible Assets, Accumulated Amortization	(1,962)	(1,704)
Finite-Lived Intangible Assets, Net	5,526	4,751
Distribution Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	5,176	2,426
Finite-Lived Intangible Assets, Accumulated Amortization	(1,181)	(900)
Finite-Lived Intangible Assets, Net	3,995	1,526
Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	2,733	1,983
Finite-Lived Intangible Assets, Accumulated Amortization	(763)	(436)
Finite-Lived Intangible Assets, Net	1,970	1,547
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	5,861	5,746
Finite-Lived Intangible Assets, Accumulated Amortization	(1,266)	(1,014)
Finite-Lived Intangible Assets, Net	4,595	4,732
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	335	315
Finite-Lived Intangible Assets, Accumulated Amortization	(142)	(108)
Finite-Lived Intangible Assets, Net	193	207
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	15,443	14,277
Finite-Lived Intangible Assets, Accumulated Amortization	(7,429)	(5,786)
Finite-Lived Intangible Assets, Net	8,014	8,491
Royalty Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	267	267
Finite-Lived Intangible Assets, Accumulated Amortization	(267)	(267)
Finite-Lived Intangible Assets, Net	$ 0	$ 0