Restructuring Charges - Schedule of Reorganization Charges within Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Apr. 30, 2024	Oct. 31, 2023	Jan. 31, 2024
January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 12,654
September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 15,600	$ 15,601
Cost of revenue | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	632
Cost of revenue | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			996
Research and development | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	7,540
Research and development | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			4,183
Sales and marketing | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	500
Sales and marketing | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1,343
General and administrative | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,982
General and administrative | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			9,079
Severance and employment-related termination costs | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	9,946
Severance and employment-related termination costs | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			7,412
Severance and employment-related termination costs | Cost of revenue | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	632
Severance and employment-related termination costs | Cost of revenue | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			996
Severance and employment-related termination costs | Research and development | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	7,540
Severance and employment-related termination costs | Research and development | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			4,183
Severance and employment-related termination costs | Sales and marketing | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	500
Severance and employment-related termination costs | Sales and marketing | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1,343
Severance and employment-related termination costs | General and administrative | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,274
Severance and employment-related termination costs | General and administrative | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			890
Facility and other contract terminations | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,708
Facility and other contract terminations | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			8,189
Facility and other contract terminations | Cost of revenue | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Facility and other contract terminations | Cost of revenue | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			0
Facility and other contract terminations | Research and development | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Facility and other contract terminations | Research and development | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			0
Facility and other contract terminations | Sales and marketing | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Facility and other contract terminations | Sales and marketing | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			0
Facility and other contract terminations | General and administrative | January 2024 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2,708
Facility and other contract terminations | General and administrative | September 2023 Reorganization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 8,189