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Commitments and Contingencies - Tax Matters - Loss contingencies (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Non-income based tax audits |  |
Loss Contingencies |  |
Accrued liability for the outcomes of non-income based tax audits | $ 5.8 | $ 5.6
Non-income based tax audits in contested hearing phase |  |
Loss Contingencies |  |
Accrued liability for the outcomes of non-income based tax audits | 0.6 | 0.9
Non-income based tax audits being managed by Exterran Corporation |  |
Loss Contingencies |  |
Accrued liability for the outcomes of non-income based tax audits | $ 0.0 | $ 1.6

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
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