Mergers and Acquisitions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Dec. 29, 2013 Maximum	Dec. 29, 2013 Minimum	Sep. 29, 2013 AEG, Parkland and other 2013 acquisitions
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	80.5				75.3
Aggregate maximum of contingent consideration	102.9				86.7
Earn out period for operating income projection			3 years	2 years
Net gains on fair value adjustment in operating income	4.6
Net decrease in our contingent earn-out liabilities	4.6
Earn-outs paid to former owners	1.6	22.4
Reported as cash used in financing activities	$ 1.6	$ 22.4