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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2016
Nov. 30, 2015
Nov. 30, 2014
Statement of Comprehensive Income [Abstract]      
Unrealized gains on available-for-sale securities, tax $ 0 $ 87 $ 387
Change in unrecognized gains (losses) of defined pension plan, tax (557) 0 159
Unrealized losses on cash flow hedges, tax (540) (2,250) 0
Foreign currency translation adjustments, tax $ 952 $ (3,349) $ (1,020)