Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Mar. 29, 2014
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	$ 8.6
Other comprehensive income before reclassification adjustments	8.8
Amounts reclassified from accumulated other comprehensive income	0.1
Net current-period other comprehensive income	8.9
Balance at the end of the period	17.5
Unrealized losses on available-for-sale investments
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(3.1)
Other comprehensive income before reclassification adjustments	0.3
Net current-period other comprehensive income	0.3
Balance at the end of the period	(2.8)
Foreign currency translation adjustments
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	16.4
Other comprehensive income before reclassification adjustments	8.5
Net current-period other comprehensive income	8.5
Balance at the end of the period	24.9
Defined benefit obligation, net of tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(4.7)
Amounts reclassified from accumulated other comprehensive income	0.1
Net current-period other comprehensive income	0.1
Balance at the end of the period	$ (4.6)