Investment in Joint Venture - Narrative (Details) - USD ($)	Aug. 01, 2021	Dec. 31, 2023
Variable Interest Entity [Line Items]
Term of maximum funding obligations or investment (in years)	3 years
Variable interest entity, amount provided		$ 6,100,000
JCP Capital Management
Variable Interest Entity [Line Items]
Term of maximum funding obligations or investment (in years)	3 years
Variable Interest Entity, Primary Beneficiary \| JCP Capital Management
Variable Interest Entity [Line Items]
Maximum funding obligation or investments of primary beneficiary	$ 35,000,000
Variable Interest Entity, Primary Beneficiary \| April 1, 2022 through March 31, 2023 \| JCP Capital Management
Variable Interest Entity [Line Items]
Percentage of funding obligations and losses (as a percent)	75.00%
Variable Interest Entity, Primary Beneficiary \| April 1, 2023 through March 31, 2024 \| JCP Capital Management
Variable Interest Entity [Line Items]
Percentage of funding obligations and losses (as a percent)	67.50%
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Maximum funding obligation or investments of reporting entity	$ 12,000,000	$ 12,000,000
Variable Interest Entity, Not Primary Beneficiary \| April 1, 2022 through March 31, 2023
Variable Interest Entity [Line Items]
Percentage of funding obligations and losses (as a percent)	25.00%
Variable Interest Entity, Not Primary Beneficiary \| April 1, 2023 through March 31, 2024
Variable Interest Entity [Line Items]
Percentage of funding obligations and losses (as a percent)	32.50%

Transphorm, Inc. 10-Q