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v3.25.2

Other noncurrent assets (Tables) | 6 Months Ended
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Jun. 30, 2025
Other noncurrent assets |
Schedule of Other Assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | June 30,
​ | ​ | 2024 | ​ | 2025
​ | ​ | (In millions)
Note receivables - OPA | ​ | $ | 91.6 | ​ | $ | 102.8
Pension asset | ​ |  | 19.8 | ​ |  | 21.9
Operating lease right-of-use assets | ​ |  | 20.6 | ​ |  | 21.5
IBNR receivables | ​ |  | 15.0 | ​ |  | 15.1
Restricted cash and cash equivalents | ​ | ​ | 5.5 | ​ | ​ | 6.0
Land held for development | ​ | ​ | 7.4 | ​ | ​ | 5.9
Other | ​ |  | 21.4 | ​ |  | 16.8
Total | ​ | $ | 181.3 | ​ | $ | 190.0
​

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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