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Condensed Consolidated Statements of Comprehensive Income (UNAUDITED) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 31, 2017
Jul. 31, 2016
Jul. 31, 2017
Jul. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]        
Net income $ 101,456 $ 84,214 $ 215,967 $ 195,976
Components of other comprehensive income (loss):        
Translation adjustments 27,126 (8,148) 27,224 586
Amortization of prior service cost and net actuarial losses, net of tax 2,199 1,743 5,598 5,231
Total other comprehensive income (loss) 29,325 (6,405) 32,822 5,817
Total comprehensive income $ 130,781 $ 77,809 $ 248,789 $ 201,793