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v3.23.1

Other Noncurrent Liabilities (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Other Liabilities Disclosure [Abstract] |
Other Noncurrent Liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | March 31,
​ | ​ | 2022 | ​ | 2023
​ | ​ | (In millions)
Accrued development costs | ​ | $ | 48.1 | ​ | $ | 45.8
Accrued litigation settlement | ​ |  | 27.4 | ​ | ​ | 27.6
Deferred income | ​ | ​ | 25.9 | ​ | ​ | 22.0
Insurance claims and expenses | ​ |  | 18.7 | ​ |  | 17.2
Operating lease liabilities | ​ | ​ | 17.4 | ​ | ​ | 17.2
Other postretirement benefits | ​ |  | 7.1 | ​ |  | 7.0
Employee benefits | ​ |  | 4.8 | ​ |  | 4.9
Reserve for uncertain tax positions | ​ |  | .3 | ​ |  | .3
Other | ​ |  | 6.7 | ​ |  | 7.1
Total | ​ | $ | 156.4 | ​ | $ | 149.1
​

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- Definition Tabular disclosure of other noncurrent liabilities. + References No definition available. + Details
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