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Exit Costs - Additional Information (Detail) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022
North Louisiana |  |
Restructuring Cost And Reserve [Line Items] |  |
Accretion expense | $ 21.0 | $ 22.1
Exit and termination costs | 37.8 | $ 24.8
Exit cost | 400.0 |
Pennsylvania | Capacity Releases on Transportation Pipelines |  |
Restructuring Cost And Reserve [Line Items] |  |
Exit cost | $ 3.8 |

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