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Stockholders' Equity and Warrant Liabilities (Details) - USD ($) $ / shares in Units, $ in Millions				12 Months Ended
	Oct. 31, 2024	Apr. 10, 2024	Jul. 12, 2022	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2022	Oct. 11, 2023	Oct. 10, 2023
Stockholders' Equity and Warrant Liabilities
Number of incremental common stock shares approved								500,000,000
Common stock, shares authorized (in shares)	1,000,000,000			1,000,000,000	1,000,000,000		1,000,000,000	500,000,000
Common Stock
Stockholders' Equity and Warrant Liabilities
Shares sold during the period				5,302,378	1,477,361	1,279,897
Amended Open Market Sales Agreement | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC
Stockholders' Equity and Warrant Liabilities
Shares sold during the period				5,300,000
Percentage of sales commission			2.00%
Gross proceeds from issuance of common stock to date under the amended sales agreement	$ 95.1			$ 95.1
Amended Open Market Sales Agreement | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC | Common Stock
Stockholders' Equity and Warrant Liabilities
Shares sold during the period	5,300,000
Percentage of sales commission		2.00%
Aggregate offering price		$ 300.0
Average sale price per share for sales to date under the amended sales agreement	$ 17.93			$ 17.93	$ 67.49
Gross proceeds from issuance of common stock to date under the amended sales agreement	$ 95.1			$ 95.1	$ 99.7
Common stock issuance, net of fees	92.6				97.4
Sales commission	1.9
Payments of underwriting discounts and commissions	0.6				$ 2.3
Number of shares sold to date					1,500,000
Offering price	$ 204.9			$ 204.9
Amended Open Market Sales Agreement | Maximum | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC | Common Stock
Stockholders' Equity and Warrant Liabilities
Shares sold during the period			3,200,000

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Primarily represents commissions incurred in the period based upon the sale by commissioned employees or third parties of the entity's goods or services, and fees for sales assistance or product enhancements performed by third parties (such as a distributor or value added reseller).

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