v3.24.3

Description of Business (Details)		1 Months Ended	3 Months Ended		9 Months Ended
Description of Business (Details)	Feb. 13, 2024 USD ($)	Nov. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) opportunity	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) opportunity	Sep. 30, 2023 USD ($)	May 07, 2024 USD ($)	Dec. 31, 2023 USD ($)	Oct. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Number of opportunities to monetize technology \| opportunity			3		3
Accumulated deficit			$ 587,705,000		$ 587,705,000			$ 523,786,000
Term debt and notes payable			15,637,000		15,637,000			60,451,000
Net loss from continuing operations			21,896,000	$ 17,552,000	66,193,000	$ 60,842,000
Net cash used in operating activities					40,759,000	$ 73,868,000
Cash and marketable securities			14,407,000		14,407,000
Severance			113,000		1,868,000
Term Debt and Notes Payable
Debt Instrument [Line Items]
Term debt and notes payable			$ 15,637,000		$ 15,637,000			$ 60,451,000
Convertible Notes Payable, due March 2024 \| Convertible Notes Payable
Debt Instrument [Line Items]
Repayments of convertible note payable	$ 58,964,000	$ 58,391,000
Available borrowing									$ 100,000	$ 20,000,000	$ 100,000,000
DDB Term Loan, due April 2029 \| Secured Debt \| Credit Agreement
Debt Instrument [Line Items]
Available borrowing							$ 15,800,000

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Benson Hill, Inc. 10-Q