Contingencies - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended
	Dec. 31, 2012	Dec. 31, 2012
Guarantees And Letters Of Credit [Line Items]
Costs related to voluntary recall of a product	$ 5,879,000	$ 5,879,000
Protandim [Member]
Guarantees And Letters Of Credit [Line Items]
Costs related to voluntary recall of a product	5,879,000
Estimated future product replacement costs	1,800,000	1,800,000
Products replacement costs estimated maximum exposure	$ 7,300,000