Business Segments Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Apr. 01, 2011	Sep. 28, 2012	Sep. 30, 2011	Oct. 01, 2010
Segment Reporting Information [Line Items]
Charges Related to Senior Secured Credit Agreement		$ 11.1
Deferred Finance Costs, Net			2.1
Favorable Adjustment Related to Non-Income Tax Settlement in the UK			14.1	4.3
Payments of Financing Costs				8.5
Term Loan Extended				1,407.4
Food and Support Services - North America
Segment Reporting Information [Line Items]
Transition and integration costs		4.9
Favorable Risk Insurance Adjustment		1.7	0.9
Income from Investment		6.7
Compensation Agreement Signed with the National Park Service (NPS)			7.8
Severance Costs			6.2
Food and Support Services - International
Segment Reporting Information [Line Items]
Severance Costs		2.9	11.4
Number of Countries in International Segment		19
Favorable Non-Income Tax Settlements in the UK		1.5	5.3	3.2
Pretax gain on sale of business			7.7
Percentage ownership sold in Chilean subsidiary			67.00%
Asset impairment charges	5.3		5.3
Land Sales			1.7
Uniform and Career Apparel
Segment Reporting Information [Line Items]
Favorable Risk Insurance Adjustment		5.7	4.8
Severance Costs		2.6	3.9
Gain on Settlement of an Eminent Domain Claim			2.6
Corporate
Segment Reporting Information [Line Items]
Severance Costs			1.3
Share-based compensation expense, before taxes				21.3
Expense Related to 2009 EBIT Target Modification				$ 5.5