Retirement Plans - Schedule of Funded Status of the Defined Benefit Pension (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Oct. 02, 2015	Sep. 26, 2014
Change in plan assets:
Plan assets - beginning of fiscal year	$ 189.9
Plan assets - end of fiscal year	202.9	$ 189.9
Defined Benefit Plans
Change in benefit obligation:
Benefit obligation - beginning of fiscal year	210.3	207.6
Service cost	6.1	5.7	$ 4.1
Interest cost	4.1	4.4	6.1
Plan participants’ contributions	8.8	9.9
Plan amendments	(1.2)	(1.1)
Plan settlements	(4.0)	(4.0)
Plan combinations	0.7	0.0
Actuarial loss	31.8	3.7
Foreign currency changes	(8.9)	(8.9)
Benefit and expense payments	(4.6)	(7.0)
Benefit obligation - end of fiscal year	243.1	210.3	207.6
Change in plan assets:
Plan assets - beginning of fiscal year	189.9	188.6
Employer contributions	8.1	6.9	7.2
Actual return on plan assets	13.0	4.1
Plan participants’ contributions	8.8	9.9
Plan settlements	(4.0)	(4.0)
Foreign currency changes	(8.7)	(8.6)
Plan combinations	0.4	0.0
Benefit and expense payments	(4.6)	(7.0)
Plan assets - end of fiscal year	202.9	189.9	$ 188.6
Funded status	(40.2)	(20.4)
Amounts recognized within the consolidated balance sheet:
Other assets	0.0	4.3
Other long-term liabilities	(40.2)	(24.7)
Net amount recognized	$ (40.2)	$ (20.4)