Goodwill and Other Intangible Assets (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill	$ 33,526	$ 33,495
Indefinite-lived trademarks	891	871
Finite-lived intangible assets, amortization expense	5,629	5,625	4,468
Finite-lived intangible assets, future amortization expense, year one	5,766
Finite-lived intangible assets, future amortization expense, year two	5,252
Finite-lived intangible assets, future amortization expense, year three	5,195
Finite-lived intangible assets, future amortization expense, year four	4,446
Finite-lived intangible assets, future amortization expense, year five	3,682
Finite-lived intangible assets, future amortization expense, after year five	15,599
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