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Commitments and Contingencies and Derivative Financial Instruments (Details) $ in Millions |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Feb. 13, 2023 USD ($) | Dec. 27, 2024 USD ($) instrument | Sep. 27, 2024 USD ($) instrument | Oct. 02, 2020 | Sep. 30, 2022 USD ($) instrument
Surety Bond |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Current maturities of long-term debt |  | $ 2,600.0 | $ 2,300.0 |  |
Line of Credit |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Current maturities of long-term debt |  | 283.3 | 306.2 |  |
Treasury Lock |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of instruments held | instrument |  |  |  |  | 2
Derivative notional amount |  |  |  |  | $ 500.0
Gain on derivatives, before taxes | $ 37.4 |  |  |  |
Unrealized gain (loss) on derivatives |  | $ 23.0 | $ 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 |  | 22.4 | 17.4 |  |
Derivative assets (liabilities), at fair value |  | 29.8 | 23.0 |  |
Interest Rate Swap | Minimum |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Term of derivative contract |  |  |  | 5 years |
Interest Rate Swap | Maximum |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Term of derivative contract |  |  |  | 10 years |
Foreign Exchange Forward |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Derivative notional amount |  | 693.4 | 827.3 |  |
Derivative assets (liabilities), at fair value |  | (7.8) | 15.3 |  |
Foreign Exchange Forward | Current Liabilities |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Derivative assets (liabilities), at fair value |  | (8.2) | (0.5) |  |
Foreign Exchange Forward | Current Assets |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Derivative assets (liabilities), at fair value |  | $ 0.4 | $ 15.8 |  |
Foreign Exchange Forward | Minimum |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Term of derivative contract |  | 1 month |  |  |
Foreign Exchange Forward | Maximum |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Term of derivative contract |  | 12 months |  |  |

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