Retirement Plans - Schedule of Funded Status of the Defined Benefit Pension and Post-Retirement Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 02, 2015	Sep. 26, 2014	Sep. 27, 2013
Change in plan assets:
Plan assets - beginning of fiscal year	$ 188.6
Plan assets - end of fiscal year	189.9	$ 188.6
Defined Benefit Plans
Change in benefit obligation:
Benefit obligation - beginning of fiscal year	207.6	195.7
Service cost	5.7	4.1	$ 4.8
Interest cost	4.4	6.1	5.2
Plan participants’ contributions	9.9	7.8
Plan amendment	(1.1)	0.0
Plan settlement	(4.0)	(7.8)
Actuarial loss	3.7	14.2
Foreign currency changes	(8.9)	(7.7)
Benefit and expense payments	(7.0)	(4.8)
Benefit obligation - end of fiscal year	210.3	207.6	195.7
Change in plan assets:
Plan assets - beginning of fiscal year	188.6	180.8
Employer contributions	6.9	7.2
Actual return on plan assets	4.1	11.8
Plan participants’ contributions	9.9	7.8
Plan settlement	(4.0)	(7.8)
Foreign currency changes	(8.6)	(6.4)
Benefit and expense payments	(7.0)	(4.8)
Plan assets - end of fiscal year	189.9	188.6	$ 180.8
Funded status	(20.4)	(19.0)
Long-term assets	4.3	5.3
Long-term liabilities	(24.7)	(24.3)
Net amount recognized	$ (20.4)	$ (19.0)