Short-Term Debt Additional details (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Jun. 28, 2013	Jun. 27, 2013
Line of Credit Facility [Line Items]
Committed lines of credit	$ 70.0	$ 55.0
Line of credit facility, current borrowing capacity			50.0
Uncommitted lines of credit	20.0	20.0	30.0
Bank of America [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		75.0
PNC Bank [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 90.0
LIBOR [Member] | Bank of America [Member]
Line of Credit Facility [Line Items]
Debt instrument, description of variable rate basis		1.25%
Base Rate [Member] | Bank of America [Member]
Line of Credit Facility [Line Items]
Debt instrument, description of variable rate basis		1250.00%