Fair Value Measurements (Fair Value Inputs, Quantitative Information) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 147,260	$ 140,712
Targanta [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 5,560	$ 6,334
Targanta [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability 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	$ 69,800	$ 123,800
Incline Therapeutics, Inc. [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	79.00%	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]
Probability of success	64.00%	64.00%
Incline Therapeutics, Inc. [Member] | Maximum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	95.00%	100.00%
ProFibrix [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 3,700	$ 88,600
ProFibrix [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	13.00%	92.00%
ProFibrix [Member] | Minimum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	5.00%	5.00%
Discount rate	26.00%	2.50%
ProFibrix [Member] | Maximum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	15.00%	95.00%
Discount rate	29.00%	24.10%
Rempex Pharmaceuticals, Inc [Member] | Commercial Milestones [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 66,300	$ 80,800
Rempex Pharmaceuticals, Inc [Member] | Commercial Milestones [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	58.00%	63.00%
Rempex Pharmaceuticals, Inc [Member] | Commercial Milestones [Member] | Minimum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	11.00%	11.00%
Discount rate	1.90%	1.50%
Rempex Pharmaceuticals, Inc [Member] | Commercial Milestones [Member] | Maximum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	95.00%	95.00%
Discount rate	5.60%	3.70%
Rempex Pharmaceuticals, Inc [Member] | Sales Milestone [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 10,100	$ 10,900
Rempex Pharmaceuticals, Inc [Member] | Sales Milestone [Member] | Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	22.00%	17.00%
Rempex Pharmaceuticals, Inc [Member] | Sales Milestone [Member] | Minimum [Member] | Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	9.00%	9.00%
Discount rate	2.10%	1.50%
Rempex Pharmaceuticals, Inc [Member] | Sales Milestone [Member] | Maximum [Member] | Adjusted Revenue Simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	49.00%	49.00%
Discount rate	6.60%	4.50%
Tenaxis Medical [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 34,700	$ 40,700
Tenaxis Medical [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	87.00%	84.00%
Tenaxis Medical [Member] | Minimum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	5.00%	5.00%
Discount rate	4.00%	1.00%
Tenaxis Medical [Member] | Maximum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	100.00%	100.00%
Discount rate	25.00%	20.00%
Annovation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 17,000
Annovation [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	45.00%
Annovation [Member] | Minimum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	8.00%
Discount rate	3.10%
Annovation [Member] | Maximum [Member] | Adjusted Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	50.00%
Discount rate	8.00%