Stock-Based Compensation - Stock Options (Details) - USD ($)	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Stock Options, [Roll Forward]
Outstanding at beginning of period (in shares)	1,416,186
Granted (in shares)	0
Exercised (in shares)	(178,033)
Forfeited/Expired (in shares)	(58,734)
Outstanding at end of period (in shares)	1,179,419
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	1,179,419
Exercisable at end of period (in shares)	1,179,419
Weighted Average Exercise Price
Outstanding at beginning of period (in usd per share)	$ 18.71
Granted (in usd per share)	0
Exercised (in usd per share)	16.93
Forfeited/Expired (in usd per share)	20.61
Outstanding at end of period (in usd per share)	18.89
Vested or expected to vest at end of period (in usd per share)	18.89
Exercisable at end of period (in usd per share)	$ 18.89
Weighted Average Remaining Contractual Life
Outstanding at end of period	4 years 2 months 12 days
Vested or expected to vest at end of period	4 years 2 months 12 days
Exercisable at end of period	4 years 2 months 12 days
Aggregate Intrinsic Value
Outstanding at end of period	$ 395,000
Vested or expected to vest at end of period	395,000
Exercisable at end of period	395,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised	500,000	$ 100,000
Fair value of stock options vested	$ 400,000	$ 1,100,000