Derivative Financial Instruments - Outstanding Currency, Forward Exchange Contracts (Detail) - Foreign Currency Forward Contracts [Member] - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
Sell [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	$ 332,608	$ 378,370
Buy [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	433,344	482,812
Euro [Member] | Sell [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	264,661	323,571
Euro [Member] | Buy [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	107,598	184,170
Pound Sterling [Member] | Sell [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	32,600	23,879
Pound Sterling [Member] | Buy [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	48,867	60,007
Japanese Yen [Member] | Sell [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	29,397	25,408
Japanese Yen [Member] | Buy [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	51,217	46,671
Australian Dollar [Member] | Sell [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	168	178
Australian Dollar [Member] | Buy [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	7,767	7,912
Hong Kong Dollar [Member] | Sell [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	189
Hong Kong Dollar [Member] | Buy [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	135,862	112,414
Singapore Dollar [Member] | Sell [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	1,108	604
Singapore Dollar [Member] | Buy [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	15,684	14,092
Others [Member] | Sell [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	4,485	4,730
Others [Member] | Buy [Member]
Derivative [Line Items]
Notional Amounts of foreign currency derivative contracts	$ 66,349	$ 57,546