Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Fair Value Disclosures - Additional Information (Detail) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Increase in fair value of contingent consideration liability	$ 1,800,000	$ 6,799,000
Fair value of liabilities transferred from Level 1 to Level 2			$ 0
Fair value of liabilities transferred from Level 2 to Level 1			0
Fair value of assets transferred from Level 1 to Level 2			0
Fair value of assets transferred from Level 2 to Level 1			$ 0
R&D expense [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Increase in fair value of contingent consideration liability	200,000	1,100,000
SG&A expense [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Increase in fair value of contingent consideration liability	$ 1,600,000	$ 5,700,000
Fair value, measurements, nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of the debt				$ 496,800,000