Commitments and Contingencies (Details 2) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended		1 Months Ended				1 Months Ended
	Dec. 29, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 29, 2012 USD ($)	Dec. 31, 2011 USD ($)	Jul. 02, 2011 USD ($)	Jun. 30, 2012 USD ($)	Dec. 31, 2011 Eningen EUR (€)	Dec. 29, 2012 Eningen USD ($)	Jun. 30, 2012 Eningen USD ($)	Dec. 16, 2011 Eningen item sqft	Aug. 31, 2007 Santa Rosa Sale Leaseback Transaction USD ($)	Dec. 29, 2012 Santa Rosa Sale Leaseback Transaction USD ($) item	Jun. 30, 2012 Santa Rosa Sale Leaseback Transaction USD ($)	Aug. 21, 2007 Santa Rosa Sale Leaseback Transaction acre sqft item
Financing Obligations
Area of land sold (in acres)														45
Area of land sold (in square feet)										394,217
Number of buildings sold										9				13
Area of property sold (in square feet)										386,132				492,000
Number of buildings leased back										2				7
Square feet of property leased back										158,154				286,000
Net cash proceeds received from sale and lease back transaction							€ 7.1				$ 32.2
Description of lease terms							The lease term is 10 years with the right to cancel a certain portion of the lease after 5 years				The lease terms range from a five year lease with a one year renewal option to a ten year lease with two five year renewal options
Letter of credit issued as a security	34.5		34.5					0.1				3.8
Financing obligation, current								0.1	0.1			1.0	0.9
Financing obligation, noncurrent	35.0		35.0			35.4		5.1	4.9			28.0	28.5
Number of buildings included in the option to purchase at the end of the lease term												1
Financing Obligations - Payment Plan Agreement for Software Licenses
Purchase of perpetual software licenses					7.1
Time period of payment plan agreement with the supplier					4 years
Amortization expense for software licenses	0.3	0.3	0.7	0.7
Future Minimum Financing Payments Payment Plan Agreement for Software Licenses and Financing Obligations
Remainder of 2012	3.8		3.8
2013	5.6		5.6
2014	3.7		3.7
2015	3.5		3.5
2016	3.5		3.5
Thereafter	37.3		37.3
Total	$ 57.4		$ 57.4