Stock Plans - Schedule of Non-Vested RSUs (Details) - Restricted Stock Units (RSUs)	12 Months Ended
	Oct. 31, 2019 $ / shares shares
Number of Shares
Nonvested RSUs, beginning balance (in shares) | shares	489,161
Granted (in shares) | shares	155,310
Vested and issued (in shares) | shares	(168,294)
Forfeited or expired (in shares) | shares	(46,606)
Nonvested RSUs, ending balance (in shares) | shares	429,571
Weighted- Average Grant Date Fair Value Per Share
Non-vested RSUs, beginning balance (in dollars per share) | $ / shares	$ 179.67
Granted (in dollars per share) | $ / shares	258.37
Vested and issued (in dollars per share) | $ / shares	168.12
Forfeited or exercised (in dollars per share) | $ / shares	197.51
Non-vested RSUs, ending balance (in dollars per share) | $ / shares	$ 210.72