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Fair Value Measurements, Derivative Instruments and Hedging Activities - Fuel Derivatives Outstanding (Details) bbl in Thousands, $ in Thousands | 12 Months Ended
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Nov. 30, 2015 USD ($) bbl $ / bbl | Nov. 30, 2014 USD ($) | Nov. 30, 2013 USD ($)
Derivative [Line Items] |  |  |  |
Unrealized (losses) gains on fuel derivatives, net | $ |  | $ (332,000) | $ (268,000) | $ 36,000
Realized losses on fuel derivatives, net | $ |  | (244,000) | (3,000) | 0
(Losses) gains on fuel derivatives, net | $ |  | $ (576,000) | $ (271,000) | $ 36,000
Fuel Derivatives 2016 Maturity |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 8,724 |  |
Fuel Derivatives 2016 Maturity June 2012 Transaction Date |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 3,564 |  |
Weighted-Average Floor Price (in dollars per BBL) | [1] | 75 |  |
Weighted-Average Ceiling Price (in dollars per BBL) | [1] | 108 |  |
Fuel Derivatives 2016 Maturity February 2013 Transaction Date |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 2,160 |  |
Weighted-Average Floor Price (in dollars per BBL) | [1] | 80 |  |
Weighted-Average Ceiling Price (in dollars per BBL) | [1] | 120 |  |
Fuel Derivatives 2016 Maturity April 2013 Transaction Date |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 3,000 |  |
Weighted-Average Floor Price (in dollars per BBL) | [1] | 75 |  |
Weighted-Average Ceiling Price (in dollars per BBL) | [1] | 115 |  |
Fuel Derivatives 2017 Maturity |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 8,124 |  |
Fuel Derivatives 2017 Maturity February 2013 Transaction Date |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 3,276 |  |
Weighted-Average Floor Price (in dollars per BBL) | [1] | 80 |  |
Weighted-Average Ceiling Price (in dollars per BBL) | [1] | 115 |  |
Fuel Derivatives 2017 Maturity April 2013 Transaction Date |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 2,028 |  |
Weighted-Average Floor Price (in dollars per BBL) | [1] | 75 |  |
Weighted-Average Ceiling Price (in dollars per BBL) | [1] | 110 |  |
Fuel Derivatives 2017 Maturity January 2014 Transaction Date |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 1,800 |  |
Weighted-Average Floor Price (in dollars per BBL) | [1] | 75 |  |
Weighted-Average Ceiling Price (in dollars per BBL) | [1] | 114 |  |
Fuel Derivatives 2017 Maturity October 2014 Transaction Date |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 1,020 |  |
Weighted-Average Floor Price (in dollars per BBL) | [1] | 80 |  |
Weighted-Average Ceiling Price (in dollars per BBL) | [1] | 113 |  |
Fuel Derivatives 2018 Maturity [Domain] |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 5,700 |  |
Fuel Derivatives 2018 Maturity January 2014 Transaction Date |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 2,700 |  |
Weighted-Average Floor Price (in dollars per BBL) | [1] | 75 |  |
Weighted-Average Ceiling Price (in dollars per BBL) | [1] | 110 |  |
Fuel Derivatives 2018 Maturity October 2014 Transaction Date |  |  |  |
Derivative [Line Items] |  |  |  |
Barrels | bbl | [1] | 3,000 |  |
Weighted-Average Floor Price (in dollars per BBL) | [1] | 80 |  |
Weighted-Average Ceiling Price (in dollars per BBL) | [1] | 114 |  |
[1] | Fuel derivatives mature evenly over each month within the above fiscal periods.

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. + References No definition available. + Details
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