Accrued Expenses and Other Long-Term Liabilities - Schedule of Other Long-Term Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013
Other Long-Term Liabilities
Reserve for income tax uncertainties	$ 131.4	$ 115.4
Accrued lease obligation-long-term	34.1	33.5
Pension liabilities	10.8	9.7
Other	7.1	9.4
Total	$ 183.4	$ 168.0