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Other Noncurrent Assets (Tables) | 6 Months Ended
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Jun. 30, 2018
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] |
Other Noncurrent Assets |
| December 31, 2017 |  |  | June 30, 2018 |
| (In millions) |
Other noncurrent assets: |  |  |  |  |  |  |
Land held for development | $ | 126.6 |  |  | $ | 123.1 |
Restricted cash |  | 9.9 |  |  |  | 9.0 |
Land contract receivables |  | — |  |  |  | 7.3 |
IBNR receivables |  | 6.8 |  |  |  | 6.9 |
Pension asset |  | 4.2 |  |  |  | 6.0 |
Notes receivable - OPA |  | — |  |  |  | 2.6 |
Other |  | 26.6 |  |  |  | 20.6 |
Total | $ | 174.1 |  |  | $ | 175.5 |

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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