Stockholders' Equity - Summary of the Stock Repurchase Program (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Jul. 31, 2019 USD ($) $ / shares shares
Shares Repurchased
Cumulative beginning balance (in shares) | shares	0
Repurchase of common stock under the stock repurchase program (in shares) | shares	2,881,564
Cumulative ending balance (in shares) | shares	2,881,564
Weighted-Average Price per Share
Cumulative beginning balance (in dollars per share) | $ / shares	$ 0
Repurchase of common stock under the stock repurchase program (in dollars per share) | $ / shares	38.84
Cumulative ending balance (in dollars per share) | $ / shares	$ 38.84
Amount Repurchased (in thousands)
Cumulative beginning balance | $	$ 0
Repurchase of common stock under the stock repurchase program | $	111,925
Cumulative ending balance | $	$ 111,925