Acquisitions (Narrative) (Details) (USD $)	3 Months Ended	0 Months Ended	3 Months Ended		0 Months Ended	3 Months Ended		0 Months Ended	3 Months Ended	0 Months Ended
	Mar. 31, 2012	Jan. 30, 2012 Ostial [Member] Y	Mar. 31, 2012 Ostial [Member]	Jan. 05, 2012 Scion [Member]	Sep. 02, 2011 Ash [Member] Y	Mar. 31, 2012 Distribution Rights [Member] Scion [Member] Y	Jan. 05, 2012 Distribution Rights [Member] Scion [Member]	Jan. 30, 2012 Customer Lists [Member] Ostial [Member] Y	Mar. 31, 2012 Customer Lists [Member] Scion [Member] Y	Sep. 02, 2011 Customer Lists [Member] Ash [Member] Y	Jan. 30, 2012 Noncompete Agreements [Member] Ostial [Member] Y	Jan. 30, 2012 Developed Technology Rights [Member] Ostial [Member] Y	Sep. 02, 2011 Developed Technology Rights [Member] Ash [Member] Y	Jan. 30, 2012 Trademarks [Member] Ostial [Member] Y
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Purchase Price				$ 2,500,000
Business Acquisition, Cost of Acquired Entity, Cash Paid		10,000,000		1,500,000	5,000,000
Business Acquisition, Contingent Consideration, Potential Cash Payment		6,500,000		1,000,000	1,000,000
Maximum Additional Amount Possibly Due Based On Future Related Product Sales			13,500,000
Business Acquisition, Purchase Price Allocation, Liabilities Assumed		5,000,000			1,300,000
Business Acquisition, Purchase Price Allocation, Assets Acquired		21,500,000			6,270,000
Finite-Lived Intangible Assets, Useful Life						6		8	5	2	5	15	15	15
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life		14.7			9
Acquired Finite-lived Intangible Asset, Amount							2,500,000	700,000	95,000	300,000	20,000	16,200,000	3,200,000
Number of Patents	3
Research and Development Asset Acquired Other than Through Business Combination, Written-off	$ 175,000