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Other Noncurrent Liabilities (Details) (USD $) In Millions, unless otherwise specified | Jun. 30, 2012 | Dec. 31, 2011
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Other noncurrent liabilities |  |
Reserve for uncertain tax positions | $ 28.2 | $ 26.9
Insurance claims and expenses | 9.9 | 9.7
Employee benefits | 9.6 | 10.3
Deferred income | 1.0 | 1.1
Other | 8.1 | 7.4
Total | $ 56.8 | $ 55.4

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