Derivative Financial Instruments (Tables)

12 Months Ended

Oct. 31, 2018

Investments All Other Investments [Abstract]

Outstanding Currency, Forward Exchange Contracts

The following table summarizes, by currency, the contracts outstanding at October 31, 2018 and 2017:

	Notional Amounts
	Sell		Buy
October 31, 2018 contract amounts:
Euro	$	323,571	$	184,170
Pound sterling		23,879		60,007
Japanese yen		25,408		46,671
Australian dollar		178		7,912
Hong Kong dollar		—		112,414
Singapore dollar		604		14,092
Others		4,730		57,546
Total	$	378,370	$	482,812
October 31, 2017 contract amounts:
Euro	$	144,611	$	78,253
Pound sterling		45,252		54,204
Japanese yen		24,904		28,358
Australian dollar		193		8,185
Hong Kong dollar		—		100,131
Singapore dollar		794		12,681
Others		5,413		51,930
Total	$	221,167	$	333,742