Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
Mar. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Cybersecurity Risk Management Strategy and Governance Overview The Trust and the Fund do not have any officers, directors or employees. The Sponsor is responsible for the oversight and overall management of the Trust and the Fund. The Sponsor is a wholly owned subsidiary of Franklin Resources, Inc. (“FRI”). FRI maintains global, firm-wide policies and procedures governing matters relating to crisis management, corporate continuity, business continuity planning and disaster recovery, enterprise business resilience, and corresponding risk mitigation processes and systems in these areas (collectively referred to as the “Global Corporate Continuity Program”). The Global Corporate Continuity Program is generally overseen by the Business Recovery Governance Committee (“BRGC”). BRGC has developed certain policies and principles in implementing the program. The executive officers of the Sponsor perform certain functions with respect to the Trust and the Fund that, if the Trust or the Fund had directors or executive officers, would typically be performed by them, including receiving reports from the BRGC regarding the Global Corporate Continuity Program. In line with the Global Corporate Continuity Program, the Sponsor or its delegate: (1) regularly conducts a business impact analysis; (2) develops, exercises and maintains a viable and actionable Business Continuity Plan specifically tailored to the Sponsor in light of the nature and scope of its business; and (3) completes annual testing of the Business Continuity Plan. Material exceptions to this policy and risk events and related mitigation/corrective measures are reported to the Sponsor’s Governance Oversight Committee. As appropriate, the Sponsor or its delegate will coordinate with FRI’s relevant risk management and disaster recovery-related committees to review risk monitoring and mitigation strategies as contemplated under the Global Corporate Continuity Program at least annually, and more often if there are significant internal or external changes affecting these risks as pertains to the Sponsor’s business and its Business Continuity Plan. FRI has adopted the National Institute of Standards and Technology’s (“NIST”) cybersecurity framework as its security outline. The program is reviewed annually. Using the NIST framework as a guide, FRI’s cybersecurity program is organized around the following program domains: • Identify critical assets, data, systems and capabilities, cybersecurity strategy and governing elements, threats and cybersecurity risks • Protect assets (data, systems, networks, personnel, etc.) from external or internal malicious actors and failed practices • Detect anomalies and security events through environments monitoring, analysis, remediation, and reporting. Engage outside vendors to periodically test the network infrastructure and software applications against known vulnerabilities and to ensure the use of a best practice security program • Respond to incidents regardless of source or causality • Recover through planning, improvements and communications (external and internal) • Conduct after-action evaluation to identify what went well, what did not go well and improve FRI’s systems after an issue
Cybersecurity Risk Management Processes Integrated [Text Block]	FRI maintains global, firm-wide policies and procedures governing matters relating to crisis management, corporate continuity, business continuity planning and disaster recovery, enterprise business resilience, and corresponding risk mitigation processes and systems in these areas (collectively referred to as the “Global Corporate Continuity Program”).
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Global Corporate Continuity Program is generally overseen by the Business Recovery Governance Committee (“BRGC”).
Cybersecurity Risk Board of Directors Oversight [Text Block]	The Global Corporate Continuity Program is generally overseen by the Business Recovery Governance Committee (“BRGC”). BRGC has developed certain policies and principles in implementing the program. The executive officers of the Sponsor perform certain functions with respect to the Trust and the Fund that, if the Trust or the Fund had directors or executive officers, would typically be performed by them, including receiving reports from the BRGC regarding the Global Corporate Continuity Program. In line with the Global Corporate Continuity Program, the Sponsor or its delegate: (1) regularly conducts a business impact analysis; (2) develops, exercises and maintains a viable and actionable Business Continuity Plan specifically tailored to the Sponsor in light of the nature and scope of its business; and (3) completes annual testing of the Business Continuity Plan. Material exceptions to this policy and risk events and related mitigation/corrective measures are reported to the Sponsor’s Governance Oversight Committee. As appropriate, the Sponsor or its delegate will coordinate with FRI’s relevant risk management and disaster recovery-related committees to review risk monitoring and mitigation strategies as contemplated under the Global Corporate Continuity Program at least annually, and more often if there are significant internal or external changes affecting these risks as pertains to the Sponsor’s business and its Business Continuity Plan.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	The executive officers of the Sponsor perform certain functions with respect to the Trust and the Fund that, if the Trust or the Fund had directors or executive officers, would typically be performed by them, including receiving reports from the BRGC regarding the Global Corporate Continuity Program.
Cybersecurity Risk Role of Management [Text Block]	The executive officers of the Sponsor perform certain functions with respect to the Trust and the Fund that, if the Trust or the Fund had directors or executive officers, would typically be performed by them, including receiving reports from the BRGC regarding the Global Corporate Continuity Program.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	In line with the Global Corporate Continuity Program, the Sponsor or its delegate: (1) regularly conducts a business impact analysis; (2) develops, exercises and maintains a viable and actionable Business Continuity Plan specifically tailored to the Sponsor in light of the nature and scope of its business; and (3) completes annual testing of the Business Continuity Plan. Material exceptions to this policy and risk events and related mitigation/corrective measures are reported to the Sponsor’s Governance Oversight Committee.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	the Sponsor or its delegate: (1) regularly conducts a business impact analysis; (2) develops, exercises and maintains a viable and actionable Business Continuity Plan specifically tailored to the Sponsor in light of the nature and scope of its business; and (3) completes annual testing of the Business Continuity Plan. Material exceptions to this policy and risk events and related mitigation/corrective measures are reported to the Sponsor’s Governance Oversight Committee.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true
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 Management and Strategy Disclosure

12 Months Ended

Mar. 31, 2025

Cybersecurity Risk Management, Strategy, and Governance [Line Items]

Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]

Cybersecurity Risk Management Strategy and Governance Overview

The Trust and the Fund do not have any officers, directors or employees. The Sponsor is responsible for the oversight and overall management of the Trust and the Fund. The Sponsor is a wholly owned subsidiary of Franklin Resources, Inc. (“FRI”). FRI maintains global, firm-wide policies and procedures governing matters relating to crisis management, corporate continuity, business continuity planning and disaster recovery, enterprise business resilience, and corresponding risk mitigation processes and systems in these areas (collectively referred to as the “Global Corporate Continuity Program”).

The Global Corporate Continuity Program is generally overseen by the Business Recovery Governance Committee (“BRGC”). BRGC has developed certain policies and principles in implementing the program. The executive officers of the Sponsor perform certain functions with respect to the Trust and the Fund that, if the Trust or the Fund had directors or executive officers, would typically be performed by them, including receiving reports from the BRGC regarding the Global Corporate Continuity Program. In line with the Global Corporate Continuity Program, the Sponsor or its delegate: (1) regularly conducts a business impact analysis; (2) develops, exercises and maintains a viable and actionable Business Continuity Plan specifically tailored to the Sponsor in light of the nature and scope of its business; and (3) completes annual testing of the Business Continuity Plan. Material exceptions to this policy and risk events and related mitigation/corrective measures are reported to the Sponsor’s Governance Oversight Committee. As appropriate, the Sponsor or its delegate will coordinate with FRI’s relevant risk management and disaster recovery-related committees to review risk monitoring and mitigation strategies as contemplated under the Global Corporate Continuity Program at least annually, and more often if there are significant internal or external changes affecting these risks as pertains to the Sponsor’s business and its Business Continuity Plan.

FRI has adopted the National Institute of Standards and Technology’s (“NIST”) cybersecurity framework as its security outline. The program is reviewed annually. Using the NIST framework as a guide, FRI’s cybersecurity program is organized around the following program domains:

• Identify critical assets, data, systems and capabilities, cybersecurity strategy and governing elements, threats and cybersecurity risks

• Protect assets (data, systems, networks, personnel, etc.) from external or internal malicious actors and failed practices

• Detect anomalies and security events through environments monitoring, analysis, remediation, and reporting. Engage outside vendors to periodically test the network infrastructure and software applications against known vulnerabilities and to ensure the use of a best practice security program

• Respond to incidents regardless of source or causality

• Recover through planning, improvements and communications (external and internal)

• Conduct after-action evaluation to identify what went well, what did not go well and improve FRI’s systems after an issue

Cybersecurity Risk Management Processes Integrated [Text Block]

FRI maintains global, firm-wide policies and procedures governing matters relating to crisis management, corporate continuity, business continuity planning and disaster recovery, enterprise business resilience, and corresponding risk mitigation processes and systems in these areas (collectively referred to as the “Global Corporate Continuity Program”).

Cybersecurity Risk Management Processes Integrated [Flag]

true

Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]

The Global Corporate Continuity Program is generally overseen by the Business Recovery Governance Committee (“BRGC”).

Cybersecurity Risk Board of Directors Oversight [Text Block]

Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]

The executive officers of the Sponsor perform certain functions with respect to the Trust and the Fund that, if the Trust or the Fund had directors or executive officers, would typically be performed by them, including receiving reports from the BRGC regarding the Global Corporate Continuity Program.

Cybersecurity Risk Role of Management [Text Block]

Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]

In line with the Global Corporate Continuity Program, the Sponsor or its delegate: (1) regularly conducts a business impact analysis; (2) develops, exercises and maintains a viable and actionable Business Continuity Plan specifically tailored to the Sponsor in light of the nature and scope of its business; and (3) completes annual testing of the Business Continuity Plan. Material exceptions to this policy and risk events and related mitigation/corrective measures are reported to the Sponsor’s Governance Oversight Committee.

Cybersecurity Risk Management Positions or Committees Responsible [Flag]

true

Cybersecurity Risk Management Positions or Committees Responsible [Text Block]

the Sponsor or its delegate: (1) regularly conducts a business impact analysis; (2) develops, exercises and maintains a viable and actionable Business Continuity Plan specifically tailored to the Sponsor in light of the nature and scope of its business; and (3) completes annual testing of the Business Continuity Plan. Material exceptions to this policy and risk events and related mitigation/corrective measures are reported to the Sponsor’s Governance Oversight Committee.

Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]

true

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