Contingent Liabilties (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended			0 Months Ended	9 Months Ended
	Feb. 28, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 13, 2013 Threatened Litigation [Member]	Sep. 29, 2013 Threatened Litigation [Member]
Loss Contingencies [Line Items]
Demand for payment				$ 26.0
Decline in contributions, percent					70.00%
Restricted cash		$ 29.2	$ 28.1
Threshold of employee terminations triggering Section 4062(e) of the Employee Retirement Income Security Act of 1974, percent	20.00%
Escrow period for funds required after Employee Retirement Income Security Act of 1974 triggering event	5 years