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Other Noncurrent Assets (Tables) | 3 Months Ended
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Mar. 31, 2017
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] |
Other Noncurrent Assets |
| December 31, 2016 |  |  | March 31, 2017 |
| (In millions) |
Other noncurrent assets: |  |  |  |  |  |  |
Land held for development | $ | 138.1 |  |  | $ | 136.7 |
Waste disposal site operating permits, net |  | 42.9 |  |  |  | 42.4 |
Restricted cash |  | 24.2 |  |  |  | 35.2 |
IBNR receivables |  | 7.1 |  |  |  | 7.4 |
Capital lease deposit |  | 6.2 |  |  |  | 6.2 |
Pension asset |  | 1.6 |  |  |  | 1.7 |
Other |  | 17.9 |  |  |  | 16.7 |
Total | $ | 238.0 |  |  | $ | 246.3 |

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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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