Long-term leases (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jun. 30, 2012	Jul. 02, 2011	Jul. 03, 2010
Rent expense charged to operations
Rent expense charged to operations, Total	$ 92,624	$ 86,703	$ 64,487
Buildings [Member]
Rent expense charged to operations
Rent expense charged to operations, Total	84,531	78,371	59,047
Equipment [Member]
Rent expense charged to operations
Rent expense charged to operations, Total	$ 8,093	$ 8,332	$ 5,440

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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