Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
Cybersecurity Risk Management and Strategy Disclosure	Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	At Katapult, cybersecurity risk management is an integral part of our overall enterprise risk management program and information security protocols. Our cybersecurity risk management program is based on industry best practices and Center for Internet Security Critical Security Controls for handling cybersecurity threats and incidents, including threats and incidents associated with the use of internally developed applications and services provided by third-party service providers, and facilitate coordination across different departments of our company. This framework includes steps for assessing the severity of a cybersecurity threat, identifying the source of a cybersecurity threat including whether the cybersecurity threat is associated with a third-party service provider, implementing cybersecurity countermeasures and mitigation strategies and informing management and our board of directors of material cybersecurity threats and incidents. Our cybersecurity team also engages third-party security experts for risk assessment and system enhancements. In addition, our cybersecurity team provides training to all employees throughout the year. Our board of directors has overall oversight responsibility for our risk management, and delegates cybersecurity risk management oversight to the audit committee of the board of directors. The audit committee is responsible for ensuring that management has processes in place designed to identify and evaluate cybersecurity risks to which the company is exposed and implement processes and programs to manage cybersecurity risks and mitigate cybersecurity incidents. The audit committee also reports material cybersecurity risks to our full board of directors. Management is responsible for identifying, considering, and assessing material cybersecurity risks on an ongoing basis, establishing processes to ensure that such potential cybersecurity risk exposures are monitored, putting in place appropriate mitigation measures and maintaining cybersecurity programs. Our cybersecurity programs are under the direction of our Chief Technology Officer, or CTO, who receives reports from our cybersecurity team and monitors the prevention, detection, mitigation, and remediation of cybersecurity incidents. Our CTO and dedicated personnel are certified and experienced information systems security professionals and information security managers with over 15 years of experience and are certified information systems security professionals. Management, including the CTO and our cybersecurity team, regularly update the audit committee on the company’s cybersecurity programs, material cybersecurity risks and mitigation strategies and provide cybersecurity reports quarterly that cover, among other topics, third-party assessments of the company’s cybersecurity programs, developments in cybersecurity, learning and training activities and updates to the company’s cybersecurity programs and mitigation strategies. In 2024, we did not identify any cybersecurity threats that have materially affected or are reasonably likely to materially affect our business strategy, results of operations, or financial condition. However, despite our efforts, we cannot eliminate all risks from cybersecurity threats, or provide assurances that we have not experienced an undetected cybersecurity incident. For more information about these risks, please see “Risk Factors —Risks Related to Our Technology and Our Platform” in this annual report on Form 10-K.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	At Katapult, cybersecurity risk management is an integral part of our overall enterprise risk management program and information security protocols. Our cybersecurity risk management program is based on industry best practices and Center for Internet Security Critical Security Controls for handling cybersecurity threats and incidents, including threats and incidents associated with the use of internally developed applications and services provided by third-party service providers, and facilitate coordination across different departments of our company. This framework includes steps for assessing the severity of a cybersecurity threat, identifying the source of a cybersecurity threat including whether the cybersecurity threat is associated with a third-party service provider, implementing cybersecurity countermeasures and mitigation strategies and informing management and our board of directors of material cybersecurity threats and incidents. Our cybersecurity team also engages third-party security experts for risk assessment and system enhancements. In addition, our cybersecurity team provides training to all employees throughout the year.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	Our board of directors has overall oversight responsibility for our risk management, and delegates cybersecurity risk management oversight to the audit committee of the board of directors.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	Our board of directors has overall oversight responsibility for our risk management, and delegates cybersecurity risk management oversight to the audit committee of the board of directors. The audit committee is responsible for ensuring that management has processes in place designed to identify and evaluate cybersecurity risks to which the company is exposed and implement processes and programs to manage cybersecurity risks and mitigate cybersecurity incidents. The audit committee also reports material cybersecurity risks to our full board of directors.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	The audit committee also reports material cybersecurity risks to our full board of directors.
Cybersecurity Risk Role of Management [Text Block]	Management is responsible for identifying, considering, and assessing material cybersecurity risks on an ongoing basis, establishing processes to ensure that such potential cybersecurity risk exposures are monitored, putting in place appropriate mitigation measures and maintaining cybersecurity programs. Our cybersecurity programs are under the direction of our Chief Technology Officer, or CTO, who receives reports from our cybersecurity team and monitors the prevention, detection, mitigation, and remediation of cybersecurity incidents. Our CTO and dedicated personnel are certified and experienced information systems security professionals and information security managers with over 15 years of experience and are certified information systems security professionals. Management, including the CTO and our cybersecurity team, regularly update the audit committee on the company’s cybersecurity programs, material cybersecurity risks and mitigation strategies and provide cybersecurity reports quarterly that cover, among other topics, third-party assessments of the company’s cybersecurity programs, developments in cybersecurity, learning and training activities and updates to the company’s cybersecurity programs and mitigation strategies.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	Management is responsible for identifying, considering, and assessing material cybersecurity risks on an ongoing basis, establishing processes to ensure that such potential cybersecurity risk exposures are monitored, putting in place appropriate mitigation measures and maintaining cybersecurity programs. Our cybersecurity programs are under the direction of our Chief Technology Officer, or CTO, who receives reports from our cybersecurity team and monitors the prevention, detection, mitigation, and remediation of cybersecurity incidents.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	Our CTO and dedicated personnel are certified and experienced information systems security professionals and information security managers with over 15 years of experience and are certified information systems security professionals.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	Management, including the CTO and our cybersecurity team, regularly update the audit committee on the company’s cybersecurity programs, material cybersecurity risks and mitigation strategies and provide cybersecurity reports quarterly that cover, among other topics, third-party assessments of the company’s cybersecurity programs, developments in cybersecurity, learning and training activities and updates to the company’s cybersecurity programs and mitigation strategies.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true