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Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Nov. 30, 2015 | Nov. 30, 2014 | Nov. 30, 2013
Statement of Comprehensive Income [Abstract] |  |  |
Net income (loss) | $ 84,643 | $ 918,349 | $ 39,963
Net actuarial gain (loss) arising during the period | 3,745 | (3,801) | 7,083
Amortization of net actuarial loss | 848 | 357 | 1,803
Amortization of prior service cost | 1,556 | 1,556 | 1,556
Other comprehensive income (loss) before tax | 6,149 | (1,888) | 10,442
Income tax expense related to items of other comprehensive income | (2,460) | (1,604) | 0
Other comprehensive income (loss), net of tax | 3,689 | (3,492) | 10,442
Comprehensive income | $ 88,332 | $ 914,857 | $ 50,405

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