Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 28, 2014
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	$ 8.6
Other comprehensive income (loss) before reclassification	2.5
Net current-period other comprehensive (loss) income	2.5
Balance at the end of the period	11.1
Additional disclosures
Tax impact on the sale of available-for-sale investments	0
Unrealized gains (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 (loss) before reclassification	0.4
Amounts reclassified from accumulated other comprehensive income	(0.1)
Net current-period other comprehensive (loss) income	0.3
Balance at the end of the period	(2.8)
Foreign currency translation adjustments, net of tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	16.4
Other comprehensive income (loss) before reclassification	9.8
Net current-period other comprehensive (loss) income	9.8
Balance at the end of the period	26.2
Defined benefit obligation, net of tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(4.7)
Other comprehensive income (loss) before reclassification	(7.7)
Amounts reclassified from accumulated other comprehensive income	0.1
Net current-period other comprehensive (loss) income	(7.6)
Balance at the end of the period	$ (12.3)