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v3.25.3

Commitments and Contingencies and Derivative Financial Instruments (Details) $ in Millions |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 13, 2023 USD ($) | Sep. 26, 2025 USD ($) | Sep. 27, 2024 USD ($) instrument | Sep. 26, 2025 USD ($) | Sep. 27, 2024 USD ($) instrument | Oct. 02, 2020 | Feb. 06, 2023 USD ($) | Sep. 30, 2022 USD ($) derivative_agreement
Letter of Credit |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  |  |  |  |  |  | $ 400.0 |
Letter of Credit | Unsecured Revolving Credit Facility February 6, 2023 |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  | $ 0.3 |  | $ 0.3 |  |  |  |
Letter of Credit | Committed And Uncommitted Letter Of Credit Facility |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  | 216.7 |  | 216.7 |  |  |  |
Surety Bond |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Short-term debt |  | 2,800.0 | $ 2,300.0 | 2,800.0 | $ 2,300.0 |  |  |
Treasury Lock |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Number of instruments held | derivative_agreement |  |  |  |  |  |  |  | 2
Derivative, notional amount |  |  |  |  |  |  |  | $ 500.0
Realized gain on derivatives | $ 37.4 |  |  |  |  |  |  |
Unrealized gain (loss) on derivatives |  |  |  | 20.9 | $ 23.6 |  |  |
Treasury Lock | Fixed Rate Date |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Derivative, fixed interest rate | 5.90% |  |  |  |  |  |  |
Aggregate principal amount | $ 500.0 |  |  |  |  |  |  |
Interest Rate Swap |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Number of instruments held | instrument |  |  | 1 |  | 1 |  |  |
Derivative, notional amount |  |  | $ 200.0 |  | $ 200.0 |  |  |
Unrealized gain (loss) on derivatives |  |  |  | 15.6 |  |  |  |
Term of contract |  |  |  |  | 10 years |  |  |
Number of instruments terminated | instrument |  |  |  |  | 2 |  |  |
Derivative instrument terminated, notional amount |  |  |  |  | $ 554.7 |  |  |
Derivative, gain on derivative |  | 35.2 | 35.2 |  | 35.2 |  |  |
Interest Rate Swap | Minimum |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Term of contract |  |  |  |  |  | 5 years |  |
Interest Rate Swap | Maximum |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Term of contract |  |  |  |  |  | 10 years |  |
Cross Currency Interest Rate Contract and Interest Rate Swamp |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Derivative assets (liabilities), at fair value |  | 20.5 | 23.0 | 20.5 | 23.0 |  |  |
Interest Rate Swap and Cross Currency Interest Rate Contract |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Unrealized gain (loss) on derivatives |  |  |  |  | 17.4 |  |  |
Foreign Exchange Forward |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Derivative, notional amount |  | 491.9 | 827.3 | 491.9 | 827.3 |  |  |
Derivative assets (liabilities), at fair value |  | (0.3) | 15.3 | (0.3) | 15.3 |  |  |
Foreign Exchange Forward | Assets, Current |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Derivative assets (liabilities), at fair value |  | 2.0 | 15.8 | 2.0 | 15.8 |  |  |
Foreign Exchange Forward | Liabilities, Current |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Derivative assets (liabilities), at fair value |  | $ (2.3) | $ (0.5) | $ (2.3) | $ (0.5) |  |  |
Foreign Exchange Forward | Minimum |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Term of contract |  |  |  | 1 month |  |  |  |
Foreign Exchange Forward | Maximum |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Term of contract |  |  |  | 3 months |  |  |  |

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