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Investments (Tables)
3 Months Ended
Sep. 28, 2025
Investments, Debt and Equity Securities [Abstract]  
Schedule of Short-term Investments by Type
(in millions of U.S. Dollars)
September 28, 2025
 Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
U.S. treasury securities$146.8 $0.1 $— $146.9 
Corporate bonds136.2 0.3 (0.9)135.6 
Municipal bonds60.9 0.2 (0.2)60.9 
Certificates of deposit5.0 — — 5.0 
Commercial paper6.0 — — 6.0 
Total short-term investments$354.9 $0.6 ($1.1)$354.4 
 June 29, 2025
(in millions of U.S. Dollars)
Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
U.S. treasury securities$192.0 $0.1 $— $192.1 
Corporate bonds196.8 0.3 (1.5)195.6 
Municipal bonds79.5 0.2 (0.5)79.2 
Certificates of deposit5.0 — — 5.0 
Commercial paper16.3 — — 16.3 
Total short-term investments$489.6 $0.6 ($2.0)$488.2 
Schedule of Contractual Maturities of Short-term Investments by Type
The contractual maturities of short-term investments as of September 28, 2025 were as follows:
(in millions of U.S. Dollars)Within One YearAfter One, Within Five YearsAfter Ten YearsTotal
U.S. treasury securities$121.4 $25.5 $— $146.9 
Corporate bonds103.0 32.6 — 135.6 
Municipal bonds49.7 11.2 — 60.9 
Certificates of deposit5.0 — — 5.0 
Commercial paper6.0 — — 6.0 
Total short-term investments$285.1 $69.3 $— $354.4