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v3.25.4

Debt - 6.625% Senior Notes (Details) - USD ($) $ in Millions |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 10, 2024 | Oct. 07, 2022 | Jul. 31, 2024 | Dec. 31, 2025 | Dec. 31, 2024
6.625% Senior Notes | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, interest rate (percentage) |  |  |  | 6.625% | 6.625%
Debt instrument, face amount |  |  |  | $ 74.9 |
Long-term debt |  |  |  | $ 72.3 | $ 71.6
Repurchase amount | $ 203.7 |  | $ 21.4 |  |
Debt instrument, redemption price (percentage) |  |  | 95.00% | 100.00% |
Debt instrument, minimum percentage of principal required to redeem in the event of default |  |  |  | 30.00% |
6.625% Senior Notes | Senior Notes | Debt Instrument, Redemption, Period Four |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, redemption price (percentage) |  | 101.00% |  |  |
IEA Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior notes, gross carrying amount |  |  |  |  | 225.1
Mastec Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior notes, gross carrying amount |  |  |  |  | $ 74.9
5.900% Senior Notes | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, interest rate (percentage) | 5.90% |  |  |  |
Debt instrument, minimum percentage of principal required to redeem in the event of default | 25.00% |  |  |  |

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