Sale of Makena - Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended		6 Months Ended		9 Months Ended
	Feb. 03, 2011	Jan. 16, 2008	Mar. 24, 2012	Mar. 26, 2011	Mar. 24, 2012	Mar. 26, 2011	Jun. 23, 2012	Jun. 25, 2011
Sale Of Intellectual Property [Line Items]
Transaction price of sale of intellectual property assets		$ 82,000,000
Amended transaction price as a result of executing amendment							199,500,000
Amount received upon FDA approval	12,500,000
Gain on sale of intellectual property, net			12,424,000	84,502,000	12,424,000	84,502,000	12,424,000	84,502,000
Scheduled amounts received			12,500,000
Additional amounts to be received under the amended agreement							95,000,000
Royalty on sales due	5.00%
Minimum [Member]
Sale Of Intellectual Property [Line Items]
Period sales price is due from FDA approval, months					18
Maximum [Member]
Sale Of Intellectual Property [Line Items]
Period sales price is due from FDA approval, months					30
Previously Received [Member] | Parent Company [Member]
Sale Of Intellectual Property [Line Items]
Transaction price amounts received	$ 79,500,000