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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jun. 26, 2021
Jun. 27, 2020
Jun. 29, 2019
Jun. 30, 2018
Jun. 28, 2020
Jul. 01, 2019
Income Tax Disclosure [Line Items]            
Net deferred tax assets $ 1.2 $ 28.7        
Valuation allowance 32.6 33.3        
Net decrease in valuation allowance 0.7          
Deferred tax liabilities 3.5          
Accumulated foreign earnings 2.1          
Gross unrecognized tax benefits 22.6 20.1 $ 18.9 $ 24.8 $ 20.1 $ 18.9
Gross unrecognized tax benefits increased during the year   2.5        
Unrecognized tax benefit, reduction of effective tax rate if recognized   14.3        
Increase (decrease) in interest and penalties accrued related to unrecognized tax benefits 0.2   $ 0.7      
Interest and penalties accrued related to unrecognized tax benefits 1.7 1.9        
Estimated decrease in unrecognized tax benefit in next 12 months 3.4          
Estimated increase in unrecognized tax benefit in next 12 months 3.0          
Federal [Member]            
Income Tax Disclosure [Line Items]            
Net operating loss carryforwards 0.5          
Tax credit carryforward, amount 16.2          
State and Local Jurisdiction [Member]            
Income Tax Disclosure [Line Items]            
Net operating loss carryforwards 4.8          
Net operating loss, beginning of expiration period       2033    
Tax credit carryforward, amount 47.0          
Foreign [Member]            
Income Tax Disclosure [Line Items]            
Net operating loss carryforwards 30.6          
Other Assets [Member]            
Income Tax Disclosure [Line Items]            
Net deferred tax assets $ 1.2 $ 28.7