Fair Value Measurements - Level 3 Inputs (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 14,655	$ 31,832
Targanta [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	5.00%	20.00%
Discount rate	11.00%	11.00%
Incline [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price		$ 1,269
Incline [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	5.00%	5.00%
Discount rate	18.00%	18.00%
Incline [Member] \| Minimum [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success		5.00%
Incline [Member] \| Maximum [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success		5.00%
Rempex [Member] \| Event-based milestones [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price	$ 19,650	$ 16,500
Rempex [Member] \| Event-based milestones [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	71.00%	78.00%
Rempex [Member] \| Event-based milestones [Member] \| Minimum [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	18.00%	18.00%
Discount rate	4.80%	5.20%
Rempex [Member] \| Event-based milestones [Member] \| Maximum [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	90.00%	95.00%
Discount rate	7.50%	8.50%
Rempex [Member] \| Sales-based milestones [Member] \| Adjusted revenue simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	72.00%	56.00%
Rempex [Member] \| Sales-based milestones [Member] \| Minimum [Member] \| Adjusted revenue simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	15.00%	16.00%
Discount rate	5.50%	6.60%
Rempex [Member] \| Sales-based milestones [Member] \| Maximum [Member] \| Adjusted revenue simulation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	85.00%	65.00%
Discount rate	6.70%	8.20%
Annovation [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent purchase price		$ 14,063
Annovation [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	33.00%	34.00%
Annovation [Member] \| Minimum [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	9.00%	9.00%
Discount rate	5.30%	6.00%
Annovation [Member] \| Maximum [Member] \| Adjusted discounted cash flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability of success	50.00%	50.00%
Discount rate	9.50%	10.00%

Noncurrent portion of the fair value, as of the balance sheet date, of potential payments under the contingent consideration arrangements.

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value.

+ References

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