Subsequent Events (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended	9 Months Ended
	Mar. 30, 2013	Jun. 30, 2012	Mar. 30, 2013 1% senior convertible notes	Mar. 30, 2013 1% senior convertible notes	Jun. 05, 2006 1% senior convertible notes	Apr. 18, 2013 Subsequent event 1% senior convertible notes
Subsequent Events
Interest rate on Senior Convertible Notes (as a percent)			1.00%	1.00%	1.00%	1.00%
Outstanding aggregate principal amount of the notes	$ 161.0	$ 307.3				$ 161.0
Principal amount of debt repurchased			$ 50.0	$ 150.0
Percentage of principal amount that the holder of the note may require the entity to repurchase the debt instrument			100.00%	100.00%		100.00%