Fair Value Measurements (Level 3 Inputs) (Details) (USD $) In Thousands, unless otherwise specified							12 Months Ended					12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2013 Targanta [Member]	Dec. 31, 2013 Targanta [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2012 Targanta [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2012 Targanta [Member] Minimum [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2012 Targanta [Member] Maximum [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 Incline Therapeutics, Inc. [Member]	Dec. 31, 2013 Incline Therapeutics, Inc. [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 Incline Therapeutics, Inc. [Member] Minimum [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 Incline Therapeutics, Inc. [Member] Maximum [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 ProFibrix [Member]	Dec. 31, 2013 ProFibrix [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 ProFibrix [Member] Minimum [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 ProFibrix [Member] Maximum [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 Commercial Milestones [Member] Rempex [Member]	Dec. 31, 2013 Commercial Milestones [Member] Rempex [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 Commercial Milestones [Member] Rempex [Member] Minimum [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 Commercial Milestones [Member] Rempex [Member] Maximum [Member] Adjusted Discounted Cash Flow [Member]	Dec. 31, 2013 Sales Milestone [Member] Rempex [Member]	Dec. 31, 2013 Sales Milestone [Member] Rempex [Member] Risk Adjusted Revenue Simulation [Member]	Dec. 31, 2013 Sales Milestone [Member] Rempex [Member] Minimum [Member] Risk Adjusted Revenue Simulation [Member]	Dec. 31, 2013 Sales Milestone [Member] Rempex [Member] Maximum [Member] Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 302,363	$ 18,971	$ 302,363	$ 18,971	$ 20,431	$ 5,573					$ 115,890				$ 84,000				$ 87,900				$ 9,000
Probabilities of success							20.00%	49.00%	20.00%	60.00%		79.00%	60.00%	85.00%		91.00%	5.00%	95.00%		63.00%	11.00%	95.00%		18.00%	0.90%	49.00%
Discount rate							11.30%	11.00%				18.00%					4.90%	17.50%			0.15%	4.38%			0.20%	5.40%