Related Party Transactions - Transactions with Viavi (Details) - Viavi Net Investment - Transactions with Viavi - USD ($) $ in Millions	3 Months Ended
Sep. 26, 2015	Sep. 27, 2014
Related Party Transaction [Line Items]
Allocated costs	$ 11.7	$ 17.1
Selling, General and Administrative
Related Party Transaction [Line Items]
Allocated costs	11.7	16.8
Interest and Other (Income) Expenses, Net
Related Party Transaction [Line Items]
Allocated costs	(0.1)	0.1
Interest Expense
Related Party Transaction [Line Items]
Allocated costs	$ 0.1	$ 0.2

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Name:	us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration