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Commitments and Contingencies (Details) (Derailment of freight train, USD $) In Millions, unless otherwise specified | Jun. 30, 2014
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Legal Matters |
Liabilities recorded based on estimated losses | $ 31.6
Receivables for portion of liability recoverable from insurance | 30.6
Accrued expenses and other current liabilities |
Legal Matters |
Liabilities recorded based on estimated losses | 16.3
Other current assets |
Legal Matters |
Receivables for portion of liability recoverable from insurance | $ 24.9

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