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Asset Retirement Obligation - Schedule of Changes in Asset Retirement Obligation (Parenthetical) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Asset retirement obligations	$ 5,210	$ 133
Change in Impact on Inflation
Loss Contingencies [Line Items]
Asset retirement obligations	1,200
Redflex Holdings Limited
Loss Contingencies [Line Items]
Asset retirement obligations	$ 3,900	$ 3,900	$ 3,900

X

- Definition

Amount of asset retirement obligations incurred during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

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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.

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