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Asset Retirement Obligations - Changes to Asset Retirement Obligation (Parenthetical) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Asset Retirement Obligation [Abstract] |  |
Revisions in estimated cash flows adjustment | $ 4.2 | $ 4.5

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- Definition Asset retirement obligation revision of estimate adjustment. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration