XML 49 R39.htm IDEA: XBRL DOCUMENT v3.22.2.2
Fair Value Measurements - Schedule of financial assets measured at fair value on a recurring basis (Detail) - Estimate of Fair Value Measurement [Member] - USD ($)
$ in Millions
Sep. 24, 2022
Jun. 25, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total assets at fair value $ 493.0 [1] $ 64.1 [2]
Municipal bonds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term investments 5.8 [1] 7.8 [2]
Corporate debt securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term investments 36.2 [1] 41.8 [2]
Money Market Funds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 390.9 [1] 12.1 [2]
U.S. Treasury Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents [1] 20.0  
Certificates of deposit [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents [1] 38.1  
Short-term investments 2.0 [1] 2.4 [2]
Level 1 Member    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total assets at fair value 410.9 12.1
Level 1 Member | Municipal bonds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term investments 0.0 0.0
Level 1 Member | Corporate debt securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term investments 0.0 0.0
Level 1 Member | Money Market Funds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 390.9 12.1
Level 1 Member | U.S. Treasury Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 20.0  
Level 1 Member | Certificates of deposit [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0.0  
Short-term investments 0.0 0.0
Level 2 Member    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total assets at fair value 82.1 52.0
Level 2 Member | Municipal bonds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term investments 5.8 7.8
Level 2 Member | Corporate debt securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term investments 36.2 41.8
Level 2 Member | Money Market Funds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0.0 0.0
Level 2 Member | U.S. Treasury Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0.0  
Level 2 Member | Certificates of deposit [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 38.1  
Short-term investments 2.0 2.4
Level 3 Member    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total assets at fair value 0.0 0.0
Level 3 Member | Municipal bonds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term investments 0.0 0.0
Level 3 Member | Corporate debt securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term investments 0.0 0.0
Level 3 Member | Money Market Funds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0.0 0.0
Level 3 Member | U.S. Treasury Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0.0  
Level 3 Member | Certificates of deposit [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0.0  
Short-term investments $ 0.0 $ 0.0
[1] Excludes $418.8 million in cash held in our bank accounts as of September 2022
[2] Excludes $811.9 million in cash held in our bank accounts as of June 2022.