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Other Assets - Other Assets (Detail) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Other noncurrent assets: |  |
Note receivables - OPA | $ 46.5 | $ 49.3
Restricted cash and cash equivalents | 30.9 | 37.2
Land held for development | 29.6 | 29.7
Operating lease right-of-use assets | 21.3 | 21.5
IBNR receivables | 15.4 | 16.8
Pension asset | 9.8 | 9.3
Marketable securities | 1.6 | 1.2
Other | 24.8 | 24.3
Total | $ 178.3 | $ 188.1

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