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Commitments and Contingencies - Tax Matters - Loss contingencies (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
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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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

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