Supplemental Cash Flow Information (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jun. 30, 2011
Supplemental Cash Flow Information [Line Items]
Data filed with the United States Environmental Protection Agency	$ 400
Rising Pharmaceuticals Inc. [Member]
Supplemental Cash Flow Information [Line Items]
Fair market value of shares of common stock issued in acquisition	$ 9,000

Value of shares issued for noncash consideration for development stage entities.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 915

-SubTopic 215

-Section 45

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6472370&loc=d3e38297-110927

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration