Balance Sheet and Other Details (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 29, 2013	Jun. 27, 2015	Jun. 28, 2014
Accounts Receivable Reserves and Allowances
Total accounts receivable reserves and allowances	$ 3.5	$ 3.5		$ 4.3	$ 3.5
Activities and balances for allowance for doubtful accounts and allowance for sales returns
Balance at Beginning of Period	3.5
Balance at End of Period	4.3	3.5
Inventories
Finished goods				91.8	78.4
Work in process				30.3	40.1
Raw materials				31.7	34.8
Inventories, net				153.8	153.3
Allowance for doubtful accounts
Accounts Receivable Reserves and Allowances
Total accounts receivable reserves and allowances	3.0	2.1	$ 2.2	2.8	3.0
Activities and balances for allowance for doubtful accounts and allowance for sales returns
Balance at Beginning of Period	3.0	2.1	2.2
Charged to Costs and Expenses	0.6	1.3	0.3
Deduction	(0.8)	(0.4)	(0.4)
Balance at End of Period	2.8	3.0	$ 2.1
Allowance for sales returns
Accounts Receivable Reserves and Allowances
Total accounts receivable reserves and allowances	0.5	0.5		$ 1.5	$ 0.5
Activities and balances for allowance for doubtful accounts and allowance for sales returns
Balance at Beginning of Period	0.5
Balance at End of Period	$ 1.5	$ 0.5