Nature of Business and Basis of Presentation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions			3 Months Ended	7 Months Ended
	Nov. 14, 2022	Jul. 12, 2022	Jan. 31, 2023	Jan. 31, 2023	Oct. 31, 2022
Nature Of Business And Basis Of Presentation [Line Items]
Cash and cash equivalents, unrestricted			$ 315,168	$ 315,168	$ 458,055
Investments - short-term			$ 75,652	$ 75,652
Shares remaining under the plan			76.5	76.5
US Treasury Securities
Nature Of Business And Basis Of Presentation [Line Items]
US Treasury Notes purchased	$ 75,000		$ 75,000
Investments - short-term			75,700	$ 75,700	$ 0
Common Stock | 2022 Open Market Sale 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
Nature Of Business And Basis Of Presentation [Line Items]
Average sale price per share				$ 3.63
Gross proceeds from issuance of common stock			$ 67,200	$ 67,200
Stock issued during period shares new issues			0.0	18.5
Shares remaining under the plan			76.5	76.5
Common Stock | 2022 Open Market Sale 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 | Maximum
Nature Of Business And Basis Of Presentation [Line Items]
Aggregate number of shares to be offered		95.0
Stock issued during period shares new issues		95.0