Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Apr. 30, 2016	Jan. 31, 2016	Jan. 31, 2015	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Income Tax [Line Items]
Earnings before income taxes of domestic operations				$ 156,723	$ 140,044	$ 184,894
Additional tax benefit relating to retroactive reinstatement of research credit				2,200
Additional tax benefit related to dividends paid from foreign earnings tax credit		$ 6,184		6,154
Favorable adjustment to unrecognized tax benefits	$ 1,192			2,682
Additional tax benefit relating to retroactive reinstatement of research and development credit		$ 2,025	$ 1,786		2,486
Earnings before income taxes of international operations				211,771	160,818	167,619
Undistributed earnings aggregated				757,501	712,913
Total unrecognized tax benefits				3,336	6,258	$ 5,812	$ 5,717
Total unrecognized tax benefits impact the effective tax rate				2,775	5,650
Accrued interest expense related to unrecognized tax benefits				541	2,664
Tax credit carryforwards				4,112
Tax credit carryforwards which will expire in 2017 through 2022				103
Indefinite tax credit carryforward amount				4,009
Operating loss carryforwards				79,616
Indefinite carryforward period				15,587
Net change in the valuation allowance				1,537	$ (904)
Valuation allowance relates to tax credits and loss carryforwards				8,304
Federal [Member]
Income Tax [Line Items]
Operating loss carryforwards				5,273
State [Member]
Income Tax [Line Items]
Operating loss carryforwards				73,809
Foreign [Member]
Income Tax [Line Items]
Operating loss carryforwards				$ 16,121