v3.26.1
Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Mar. 28, 2026
Dec. 27, 2025
Sep. 27, 2025
Mar. 29, 2025
Dec. 28, 2024
Sep. 28, 2024
Mar. 28, 2026
Mar. 29, 2025
Changes in accumulated other comprehensive income (loss) by component                
Balance at the beginning of the period $ 846.6 $ 780.8 $ 1,134.7 $ 872.3 $ 895.9 $ 957.3 $ 1,134.7 $ 957.3
Other comprehensive gain (loss), net (2.4) 0.3 0.1 0.9 (1.4) 2.3 (2.0) 1.8
Balance at the end of the period 2,973.4 846.6 780.8 879.5 872.3 895.9 2,973.4 879.5
Unrealized loss on available-for-sale securities is presented net of tax 0.0     0.0     0.0 0.0
Total                
Changes in accumulated other comprehensive income (loss) by component                
Balance at the beginning of the period 9.4 9.1 9.0 10.2 11.6 9.3 9.0 9.3
Other comprehensive gain (loss), net (2.4) 0.3 0.1 0.9 (1.4) 2.3    
Balance at the end of the period 7.0 9.4 9.1 11.1 10.2 11.6 7.0 11.1
Foreign Currency Translation Adjustments, Net of Tax                
Changes in accumulated other comprehensive income (loss) by component                
Balance at the beginning of the period 9.6 9.6 9.9 9.5 9.8 9.8 9.9 9.8
Other comprehensive gain (loss), net 0.0 0.0 (0.3) 0.3 (0.3) 0.0    
Balance at the end of the period 9.6 9.6 9.6 9.8 9.5 9.8 9.6 9.8
Defined Benefit Obligations, Net of Tax                
Changes in accumulated other comprehensive income (loss) by component                
Balance at the beginning of the period (1.6) (1.6) (1.6) 0.7 0.7 0.7 (1.6) 0.7
Other comprehensive gain (loss), net 0.0 0.0 0.0 0.0 0.0 0.0    
Balance at the end of the period (1.6) (1.6) (1.6) 0.7 0.7 0.7 (1.6) 0.7
Unrealized Gain (Loss) on Available-for-sale Securities, Net of Tax                
Changes in accumulated other comprehensive income (loss) by component                
Balance at the beginning of the period 1.4 1.1 0.7 0.0 1.1 (1.2) 0.7 (1.2)
Other comprehensive gain (loss), net (2.4) 0.3 0.4 0.6 (1.1) 2.3    
Balance at the end of the period $ (1.0) $ 1.4 $ 1.1 $ 0.6 $ 0.0 $ 1.1 $ (1.0) $ 0.6