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Fair Value Measurements - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Dec. 28, 2019
Jun. 26, 2021
Jun. 27, 2020
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Intangible asset and equipment impairment charges $ 30.2 $ 0.0 $ 30.2
Borrowed principal   1,000.0  
Credit Agreement      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Borrowed principal   1,400.0  
2028 Senior Notes      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Fair value of debt instrument   420.8  
2029 Senior Notes      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Fair value of debt instrument   $ 940.0  
Medical Aesthetics      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Intangible asset and equipment impairment charges $ 30.2