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Organization and Business Operations, Proposed Business Combination (Q3) (Details) $ / shares in Units, $ in Millions |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 12, 2023 USD ($) $ / shares | Sep. 30, 2023 | Dec. 31, 2022
Proposed Business Combination [Abstract] |  |  |
Stock conversion basis at time of business combination |  | 1 | 1
Maximum [Member] |  |  |
Proposed Business Combination [Abstract] |  |  |
Period to close business combination following satisfaction or waiver of all closing conditions |  | 2 days |
DevvStream Corp. [Member] |  |  |
Proposed Business Combination [Abstract] |  |  |
Consideration to be paid | $ | $ 145 |  |
Share consideration price (in dollars per share) | $ 10.2 |  |
Sponsor [Member] |  |  |
Proposed Business Combination [Abstract] |  |  |
Stock conversion basis at time of business combination | 1 |  |
Holding period for transfer, assignment or sale of founder shares |  | 360 days |
Threshold trading days |  | 20 days |
Threshold consecutive trading days |  | 30 days |
Period after initial Business Combination |  | 150 days |
Sponsor [Member] | Minimum [Member] |  |  |
Proposed Business Combination [Abstract] |  |  |
Share price (in dollars per share) | $ 12 |  |
Sponsor [Member] | Class B Common Stock [Member] |  |  |
Proposed Business Combination [Abstract] |  |  |
Percentage of common shares to be forfeited upon closing of proposed transactions | 10.00% |  |
Sponsor [Member] | Class B Common Stock [Member] | Maximum [Member] |  |  |
Proposed Business Combination [Abstract] |  |  |
Percentage of common shares or warrants to be forfeited | 30.00% |  |

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