XML 1079 R3.htm IDEA: XBRL DOCUMENT v2.4.1.9
Consolidated Statements of Comprehensive Income Statement (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Nov. 30, 2014
Aug. 31, 2014
May 31, 2014
Feb. 28, 2014
Nov. 30, 2013
Aug. 31, 2013
May 31, 2013
Feb. 28, 2013
Nov. 30, 2014
Nov. 30, 2013
Nov. 30, 2012
Statement of Comprehensive Income [Abstract]                      
Net income (loss) $ 852,801us-gaap_NetIncomeLoss $ 28,361us-gaap_NetIncomeLoss $ 26,624us-gaap_NetIncomeLoss $ 10,563us-gaap_NetIncomeLoss $ 28,116us-gaap_NetIncomeLoss $ 27,278us-gaap_NetIncomeLoss $ (2,973)us-gaap_NetIncomeLoss $ (12,458)us-gaap_NetIncomeLoss $ 918,349us-gaap_NetIncomeLoss $ 39,963us-gaap_NetIncomeLoss $ (58,953)us-gaap_NetIncomeLoss
Net actuarial gain (loss) arising during the period                 (3,801)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax 7,083us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax (4,765)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax
Amortization of net actuarial loss                 357us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses 1,803us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses 1,403us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses
Amortization of prior service cost                 1,556us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax 1,556us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax 1,556us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
Other comprehensive income (loss) before tax                 (1,888)us-gaap_OtherComprehensiveIncomeLossBeforeTax 10,442us-gaap_OtherComprehensiveIncomeLossBeforeTax (1,806)us-gaap_OtherComprehensiveIncomeLossBeforeTax
Income tax expense related to items of other comprehensive income                 (1,604)us-gaap_OtherComprehensiveIncomeLossTax 0us-gaap_OtherComprehensiveIncomeLossTax 0us-gaap_OtherComprehensiveIncomeLossTax
Other comprehensive income (loss), net of tax                 (3,492)us-gaap_OtherComprehensiveIncomeLossNetOfTax 10,442us-gaap_OtherComprehensiveIncomeLossNetOfTax (1,806)us-gaap_OtherComprehensiveIncomeLossNetOfTax
Comprehensive income (loss)                 $ 914,857us-gaap_ComprehensiveIncomeNetOfTax $ 50,405us-gaap_ComprehensiveIncomeNetOfTax $ (60,759)us-gaap_ComprehensiveIncomeNetOfTax