Schedule of Estimated Future Benefit Payments (Detail) (USD $) In Millions, unless otherwise specified	Sep. 27, 2013
Defined Benefit Plan Disclosure [Line Items]
2014	$ 5.3
2015	5.7
2016	5.4
2017	7.7
2018	7.7
2019-2023	41.7
Defined Benefit Plan, Expected Future Benefit Payments, Total	73.5
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
2014	4.8
2015	5.2
2016	4.9
2017	7.2
2018	7.3
2019-2023	39.9
Defined Benefit Plan, Expected Future Benefit Payments, Total	69.3
Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
2014	0.5
2015	0.5
2016	0.5
2017	0.5
2018	0.4
2019-2023	1.8
Defined Benefit Plan, Expected Future Benefit Payments, Total	$ 4.2