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Commitments and contingencies (Details) - Environmental remediation $ in Millions	Mar. 31, 2023 USD ($)
Phillipsburg, New Jersey
Commitments and contingencies
Accrued environmental loss	$ 2.6
Accrued environmental loss, gross	$ 3.9
Phillipsburg, New Jersey | Minimum
Commitments and contingencies
Accrued environmental loss, discount rate	3.40%
Phillipsburg, New Jersey | Maximum
Commitments and contingencies
Accrued environmental loss, discount rate	4.70%
Gliwice, Poland
Commitments and contingencies
Accrued environmental loss	$ 1.0

X

- Definition

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

+ References

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- Definition

Rate applied to the undiscounted amount of environmental loss contingencies to arrive at the present value recorded as of the balance sheet date.

+ References

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Undiscounted amount of the accrual for environmental loss contingencies.

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