Goodwill and Other Intangible Assets (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill	$ 33,495	$ 33,625
Indefinite-lived trademarks	871	987
Finite-lived intangible assets, amortization expense	5,625	4,468	1,998
Finite-lived intangible assets, future amortization expense, year one	5,618
Finite-lived intangible assets, future amortization expense, year two	5,618
Finite-lived intangible assets, future amortization expense, year three	5,590
Finite-lived intangible assets, future amortization expense, year four	5,532
Finite-lived intangible assets, future amortization expense, year five	5,208
Finite-lived intangible assets, future amortization expense, after year five	16,814
Customer Relationships [Member] | Minimum [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Finite-lived intangible assets, estimated useful life	7 years
Customer Relationships [Member] | Maximum [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Finite-lived intangible assets, estimated useful life	11 years
Trademarks [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Finite-lived intangible assets, estimated useful life	4 years
Product Rights and Related Intangibles [Member] | Minimum [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Finite-lived intangible assets, estimated useful life	3 years
Product Rights and Related Intangibles [Member] | Maximum [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Finite-lived intangible assets, estimated useful life	14 years
License Agreements [Member] | Minimum [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Finite-lived intangible assets, estimated useful life	6 years
License Agreements [Member] | Maximum [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Finite-lived intangible assets, estimated useful life	11 years
EPA Registrations and Related Data [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Finite-lived intangible assets, estimated useful life	10 years
Technology-based Intangibles [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Finite-lived intangible assets, estimated useful life	7 years
Human Health [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill	$ 31,739	$ 31,739