Fair Value Measurements (Level 3 Inputs) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	140,712	302,363
Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	351,134	302,363
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	351,134	302,363	18,971
Targanta [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	6,334	5,573
Targanta [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	20.00%	20.00%
Discount rate	11.00%	11.00%
Incline Therapeutics, Inc. [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	123,800	115,890
Incline Therapeutics, Inc. [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	83.00%
Discount rate	18.00%	18.00%
Incline Therapeutics, Inc. [Member] | Minimum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	64.00%
Incline Therapeutics, Inc. [Member] | Maximum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	100.00%
ProFibrix [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	88,600	84,000
ProFibrix [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	92.00%
ProFibrix [Member] | Minimum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	5.00%
Discount rate	2.50%
ProFibrix [Member] | Maximum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	95.00%
Discount rate	24.10%
Commercial Milestones [Member] | Rempex [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	80,800	87,900
Commercial Milestones [Member] | Rempex [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	63.00%	63.00%
Commercial Milestones [Member] | Rempex [Member] | Minimum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	11.00%	11.00%
Discount rate	1.50%	1.50%
Commercial Milestones [Member] | Rempex [Member] | Maximum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	95.00%	95.00%
Discount rate	3.70%	4.38%
Sales Milestone [Member] | Incline Therapeutics, Inc. [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success		79.00%
Sales Milestone [Member] | Incline Therapeutics, Inc. [Member] | Minimum [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success		60.00%
Sales Milestone [Member] | Incline Therapeutics, Inc. [Member] | Maximum [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success		85.00%
Sales Milestone [Member] | ProFibrix [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success		91.00%
Sales Milestone [Member] | ProFibrix [Member] | Minimum [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success		5.00%
Discount rate		4.90%
Sales Milestone [Member] | ProFibrix [Member] | Maximum [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success		95.00%
Discount rate		17.50%
Sales Milestone [Member] | Rempex [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	10,900	9,000
Sales Milestone [Member] | Rempex [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	17.00%	18.00%
Sales Milestone [Member] | Rempex [Member] | Minimum [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	0.90%	9.00%
Discount rate	1.50%	2.00%
Sales Milestone [Member] | Rempex [Member] | Maximum [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	49.00%	49.00%
Discount rate	4.50%	5.40%
Sales Milestone [Member] | Tenaxis Medical [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	40,700
Sales Milestone [Member] | Tenaxis Medical [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	84.00%
Sales Milestone [Member] | Tenaxis Medical [Member] | Minimum [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	5.00%
Discount rate	1.00%
Sales Milestone [Member] | Tenaxis Medical [Member] | Maximum [Member] | Risk Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probabilities of success	100.00%
Discount rate	20.00%