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Other noncurrent assets (Tables)
3 Months Ended
Mar. 31, 2025
Other noncurrent assets  
Schedule of Other Assets

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December 31, 

    

March 31, 

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2024

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2025

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(In millions)

Note receivables - OPA

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$

91.6

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$

84.2

Pension asset

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19.8

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21.3

Operating lease right-of-use assets

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20.6

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21.0

IBNR receivables

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15.0

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15.0

Land held for development

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7.4

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5.9

Restricted cash and cash equivalents

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5.5

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5.7

Other

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21.4

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18.6

Total

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$

181.3

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$

171.7