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Accrued Expenses and Other Long-Term Liabilities - Schedule of Other Long-Term Liabilities (Detail) - USD ($)
$ in Millions
Sep. 28, 2019
Sep. 29, 2018
Other Long-Term Liabilities    
Reserve for income tax uncertainties $ 106.8 $ 92.6
Accrued lease obligation—long-term 33.7 35.5
Pension liabilities 10.2 9.9
Other 11.7 19.6
Total $ 162.4 $ 157.6