Acquisitions (Narrative) (Details) (USD $)	3 Months Ended	6 Months Ended		0 Months Ended	6 Months Ended			0 Months Ended	3 Months Ended		0 Months Ended	3 Months Ended	0 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2011	Jan. 30, 2012 Ostial [Member] Y	Jun. 30, 2012 Ostial [Member]	May 31, 2012 Scion [Member]	Jan. 05, 2012 Scion [Member]	Sep. 02, 2011 Ash [Member] Y	Jun. 30, 2012 Distribution Rights [Member] Scion [Member] Y	Jan. 05, 2012 Distribution Rights [Member] Scion [Member]	Jan. 30, 2012 Customer Lists [Member] Ostial [Member] Y	Jun. 30, 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									12		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	4
Research and Development Asset Acquired Other than Through Business Combination, Written-off		2,175,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		$ (460,000)	$ 0