Mergers and Acquisitions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended				12 Months Ended	6 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Mar. 30, 2014	Mar. 31, 2013	Mar. 30, 2014 Maximum	Mar. 30, 2014 Minimum	Sep. 29, 2013 AEG, Parkland and other 2013 acquisitions	Mar. 30, 2014 Parkland
Business acquisition
Aggregate fair value of purchase prices							$ 248.9
Cash paid to the sellers							171.6
Amount recorded as liabilities in accordance with the purchase agreements							2.0
Estimated fair value of contingent earn-out obligations	49.1		49.1				75.3
Aggregate maximum of contingent consideration	78.8		78.8				86.7
Earn out period for operating income projection					3 years	2 years
Net decreases in our contingent earn-out liabilities	21.3	1.0	26.0	1.0
Net gains on fair value adjustment in operating income	21.3	1.0	26.0	1.0
Goodwill balance								96.4
Earn-outs paid to former owners			10.6	24.4
Reported as cash used in financing activities			9.3	24.0
Reported as cash used in operating activities			$ 1.3	$ 0.4