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Other Assets (Tables) | 12 Months Ended
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Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of Other Assets | Other assets consisted of the following (in millions):
| December 31,
| 2022 |  | 2021
Capitalized software costs, net of accumulated amortization | $ | 15.7 |  |  | $ | 13.9 |
Grantor trust assets | 6.2 |  |  | 21.6 |
Net pension assets | 31.0 |  |  | 26.3 |
Long-term supplies inventory | 9.3 |  |  | 4.9 |
Hedge contracts assets | 39.2 |  |  | 3.3 |
Other assets | 14.0 |  |  | 6.0 |
Total | $ | 115.4 |  |  | $ | 76.0 |

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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