Business Acquisition - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015
Business Acquisition [Line Items]
Business combination, goodwill	$ 18,643	$ 10,000	$ 18,643
MDV3800 [Member]
Business Acquisition [Line Items]
Business acquisition upfront cash payments	410,000		410,000
Acquisition-date fair value of contingent consideration payments	171,942		171,942
Business combination, identifiable intangible asset	573,299		573,299
Business combination, goodwill	8,643		8,643
Business combination, Goodwill expected to be deductible for tax purposes	8,600		8,600
MDV9300 [Member]
Business Acquisition [Line Items]
Business acquisition upfront cash payments		5,000	5,000
Acquisition-date fair value of contingent consideration payments	106,000	$ 106,000	106,000
Business combination, identifiable intangible asset	101,000		101,000
Business combination, goodwill	10,000		10,000
Business combination, Goodwill expected to be deductible for tax purposes	$ 10,000		10,000
Milestone payment			$ 5,000
MDV9300 [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Percentage of royalty	5.00%		5.00%
MDV9300 [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Percentage of royalty	11.00%		11.00%
Defined Regulatory and Sales-Based Milestones [Member] \| MDV3800 [Member]
Business Acquisition [Line Items]
Business acquisition maximum contingent consideration	$ 160,000		$ 160,000
Sales Milestones [Member] \| MDV9300 [Member]
Business Acquisition [Line Items]
Business acquisition maximum contingent consideration	245,000		245,000
Development Milestones [Member] \| MDV9300 [Member]
Business Acquisition [Line Items]
Business acquisition maximum contingent consideration	$ 85,000		$ 85,000

Dollar amount of future milestone payment for technology transfer under manufacturing services agreement.

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Range of percentage rates for royalties paid annual worldwide net sales, as defined by license agreement.

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- Definition

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

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Amount of liability recognized arising from contingent consideration in a business combination.

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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