Annual report pursuant to Section 13 and 15(d)

Acquisitions - Additional Information (Detail)

v2.4.0.8
Acquisitions - Additional Information (Detail) (USD $)
12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended
Jun. 30, 2013
Non-compete agreement
Jun. 30, 2011
Boston Biochem
Apr. 01, 2011
Boston Biochem
Developed technology
Apr. 01, 2011
Boston Biochem
Trade names
Apr. 01, 2011
Boston Biochem
Non-compete agreement
Apr. 01, 2011
Boston Biochem
Customer relationships
Jun. 30, 2011
Tocris
Apr. 28, 2011
Tocris
Developed technology
Apr. 28, 2011
Tocris
Trade names
Apr. 28, 2011
Tocris
Customer relationships
Business Acquisition [Line Items]                    
Acquired intangible assets     $ 1,900,000 $ 1,700,000 $ 400,000 $ 300,000   $ 25,300,000 $ 16,500,000 $ 6,600,000
Acquired intangible assets, useful life (in years) 5 years   12 years 12 years 5 years 12 years   15 years 10 years 13 years
Business acquisition, transaction costs   $ 148,000         $ 1,600,000