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Commitments and Contingencies (Details) $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Aug. 27, 2021 board_member officer | Apr. 09, 2021 USD ($) | Dec. 31, 2023 USD ($) | Mar. 31, 2024 USD ($)
Loss Contingencies [Line Items] |  |  |  |
Termination fee |  | $ 100 |  |
Accrued litigation settlement (Note 13) |  |  | $ 12,000 | $ 12,000
Litigation insurance reimbursement receivable (Note 13) |  |  | 5,000 | $ 5,000
McIntosh v. Katapult Holdings, Inc., et all | Settled Litigation |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Accrued litigation settlement (Note 13) |  |  | 12 |
Litigation expense, net |  |  | 7 |
Estimated insurance reimbursement |  |  | 5 |
McIntosh v. Katapult Holdings, Inc., et all | Legacy Katapult | Officer | Settled Litigation |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of defendants | officer | 3 |  |  |
Number of defendants dismissed | board_member | 2 |  |  |
McIntosh v. Katapult Holdings, Inc., et all | FinServ | Officer | Settled Litigation |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of defendants | officer | 2 |  |  |
Litigation insurance reimbursement receivable (Note 13) |  |  | $ 5 |

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