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Telford Fire Safety Remediation (Details) - Telford Fire Safety Remediation - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Estimated environmental liability	$ 188.1	$ 185.9
Costs incurred for work performed during the period	0.5
Additional provision recorded in the period	$ 0.0

X

- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Amount of expense for newly incurred environmental loss contingencies. Includes, but is not limited to, remediation expense and interest accretion.

+ References

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Increase (decrease) in the accrual for environmental loss contingencies during the reporting period.

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