Goodwill and Other Intangible Assets (Schedule of Intangible Assets Subject to Amortization) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Goodwill and Intangible Assets Disclosure [Line Items]
Gross Carrying Value	$ 59,775	$ 59,839
Accumulated Amortization	15,395	10,168
Net Book Value	44,380	49,671
Customer Relationships [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Gross Carrying Value	7,226	7,624
Accumulated Amortization	3,435	3,415
Net Book Value	3,791	4,209
Trademarks [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Gross Carrying Value	1,700	1,700
Accumulated Amortization	729	243
Net Book Value	971	1,457
Product Rights and Related Intangibles [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Gross Carrying Value	33,221	32,846
Accumulated Amortization	4,105	1,446
Net Book Value	29,116	31,400
License Agreements [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Gross Carrying Value	5,938	5,938
Accumulated Amortization	1,789	863
Net Book Value	4,149	5,075
EPA Registrations and Related Data [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Gross Carrying Value	11,535	11,576
Accumulated Amortization	5,285	4,171
Net Book Value	6,250	7,405
Technology-based Intangibles [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Gross Carrying Value	155	155
Accumulated Amortization	52	30
Net Book Value	$ 103	$ 125