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v3.22.2.2

Marketable Securities - Additional Information (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
May 05, 2022 | Sep. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Marketable Securities [Line Items] |  |  |  |  |  |  |
Investment income (loss) |  | $ (2,121,000) |  | $ (18,867,000) | $ (4,449,000) | $ (18,665,000) |
Realized gain on sale of marketable securities |  |  |  |  | 112,000 |  |
Realized loss on sale of marketable securities |  |  |  |  | $ 744,000 |  |
Realized gain or (loss) on marketable securities |  |  |  | $ 0 |  | $ 0 |
IronNet [Member] |  |  |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |  |  |
Number of put options sold, shares |  |  |  |  | 250,000 |  |
Common stock, delivery of shares |  |  |  |  | 50,000 |  |
IronNet [Member] | IronNet [Member] | Common Stock [Member] |  |  |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |  |  |
Distribution of shares by sponsor subject to certain founder share restrictions |  |  |  |  |  |  | 1,250,000
IronNet [Member] | IronNet [Member] | Put Options [Member] |  |  |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |  |  |
Common stock, delivery of shares |  |  | 50,000 |  |  |  |
IronNet [Member] | IronNet [Member] | Put Options [Member] | Common Stock [Member] |  |  |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |  |  |
Shares issued by sponsor |  | 100,500 |  |  | 100,500 |  | 300,000
Shares sold | 250,000 |  |  |  |  |  |
Shares sold value | $ 1,263,000 |  |  |  |  |  |
IronNet [Member] | Put Options [Member] |  |  |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |  |  |
Gain on sale of put options |  |  |  |  | $ 856,000 |  |

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