Liabilities - Performance Obligations Amount (Details) $ in Millions	6 Months Ended
Jun. 30, 2021 USD ($)
Performance obligations
Remaining performance obligations	$ 35.1
Minimum
Performance obligations
Performance obligation at time of contract origination	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Performance obligations
Percentage of remaining performance obligation expected to be recognized	73.00%

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

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- Definition

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- Definition

Period at time of contract origination in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Percentage of remaining performance obligation expected to be recognized.

+ References

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