Quarterly report pursuant to Section 13 or 15(d)

FUEL DERIVATIVE CONTRACTS Fair value Fuel Derivative Contracts (Details)

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FUEL DERIVATIVE CONTRACTS Fair value Fuel Derivative Contracts (Details) (Commodity Contract [Member])
May 03, 2014
gal
Commodity Contract [Member]
 
Derivative [Line Items]  
Nonmonetary notional amount 800,000
Diesel fuel need in derivative contracts (in hundredths) 20.00%