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Commitments and contingencies (Details) - Environmental remediation $ in Millions | Mar. 31, 2023 USD ($)
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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

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