Reconciliation between Taxes that Would Arise by Applying Basic Tax Rate of Country of Principal Operations to Effective Tax Charge (Parenthetical) (Detail) (USD $)	12 Months Ended
	Jun. 29, 2012	Jun. 24, 2011	Jun. 25, 2010
Reconciliation of Effective Income Tax Rate [Line Items]
Tax calculated at a corporate income tax rate, rate	30.00%	30.00%	30.00%
Income not subject to tax per ordinary share on a diluted basis	$ (0.44)	$ 0.46	$ 0.34