v3.26.3
Fees and Expenses - Franklin Alternative Strategies Fund
May 31, 2026
USD ($)
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]

These tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees (including on Class R6 and Advisor Class shares), such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $25,000 in Franklin Templeton funds and certain other funds distributed through Franklin Distributors, LLC, the Fund’s distributor. More information about these and other discounts is available from your financial professional and under “Your Account” on page 56 in the Fund’s Prospectus and under “Buying and Selling Shares” on page 95 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in Appendix A – “Intermediary Sales Charge Discounts and Waivers” to the Fund’s prospectus.
Expense Breakpoint Discounts [Text] You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $25,000 in Franklin Templeton funds and certain other funds distributed through Franklin Distributors, LLC, the Fund’s distributor.
Expense Breakpoint, Minimum Investment Required [Amount] $ 25,000
Shareholder Fees Caption [Optional Text] Shareholder Fees
Shareholder Fees [Table]
Shareholder Fees - Franklin Alternative Strategies Fund
Class A
Class C
Class R
Class R6
Advisor Class
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% [1] 1.00% 0.00% 0.00% 0.00%
[1]

There is a 1% contingent deferred sales charge that applies to investments of $1 Million or more (see "Investments of $1 Million or More" under "Choosing a Share Class") and purchases by certain retirement plans without an initial sales charge on shares sold within 18 months of purchase.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Franklin Alternative Strategies Fund
Class A
Class C
Class R
Class R6
Advisor Class
Management Fees (as a percentage of Assets) [1] 1.70% 1.70% 1.70% 1.70% 1.70%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.50% 0.00% 0.00%
Component1 Other Expenses 0.45% 0.45% 0.45% 0.45% 0.45%
Component3 Other Expenses 0.35% 0.35% 0.36% 0.26% 0.35%
Other Expenses (as a percentage of Assets): 0.80% 0.80% 0.81% 0.71% 0.80%
Acquired Fund Fees and Expenses 0.03% 0.03% 0.03% 0.03% 0.03%
Expenses (as a percentage of Assets) [2] 2.78% 3.53% 3.04% 2.44% 2.53%
Fee Waiver or Reimbursement [3] (0.35%) (0.35%) (0.36%) (0.26%) (0.35%)
Net Expenses (as a percentage of Assets) 2.43% 3.18% 2.68% 2.18% 2.18%
Fee Waiver or Reimbursement over Assets, Date of Termination September 30, 2027 September 30, 2027 September 30, 2027 September 30, 2027 September 30, 2027
[1] The Fund is the sole owner of a Cayman Islands-based company (Subsidiary) that pays management fees to the investment manager. The investment manager has contractually agreed to waive the management fee it receives from the Fund in an amount equal to the management fee paid by the Subsidiary. The waiver may not be terminated and will remain in effect for as long as the investment manager’s contract with the Subsidiary is in place. Both the management fee of the Subsidiary and the effect of this waiver are reflected in the numbers above.
[2] Total annual Fund operating expenses differ from the ratio of expenses to average net assets shown in the Financial Highlights, which reflect the operating expenses of the Fund and do not include acquired fund fees and expenses.
[3] The investment manager has agreed to waive fees and/or reimburse operating expenses (excluding Rule 12b-1 fees; acquired fund fees and expenses; expenses related to securities sold short; and certain non-routine expenses or costs, such as those relating to litigation, indemnification, reorganizations and liquidations) for the Fund so that the ratio of total annual fund operating expenses will not exceed 1.70% for each share class. In addition, transfer agency fees on Class R6 shares of the Fund have been capped so that transfer agency fees for that class do not exceed 0.03%. These contractual arrangements are expected to continue until September 30, 2027. During the terms, the fee waiver and expense reimbursement agreements may not be terminated or amended without approval of the board of trustees except to add series or classes, to reflect the extension of termination dates or to lower the waiver and expense limitation (which would result in lower fees for shareholders).
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects adjustments made to the Fund's operating expenses due to the fee waivers and/or expense reimbursements by management for the 1 Year numbers only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Franklin Alternative Strategies Fund - USD ($)
Class A
Class C
Class R
Class R6
Advisor Class
Expense Example, with Redemption, 1 Year $ 783 $ 421 $ 271 $ 221 $ 221
Expense Example, with Redemption, 3 Years 1,334 1,050 905 736 754
Expense Example, with Redemption, 5 Years 1,910 1,801 1,565 1,277 1,314
Expense Example, with Redemption, 10 Years $ 3,465 $ 3,610 $ 3,330 $ 2,756 $ 2,839
Expense Example, No Redemption, By Year, Caption [Text] If you do not sell your shares:
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Franklin Alternative Strategies Fund
Class C
USD ($)
Expense Example, No Redemption, 1 Year $ 321
Expense Example, No Redemption, 3 Years 1,050
Expense Example, No Redemption, 5 Years 1,801
Expense Example, No Redemption, 10 Years $ 3,610
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 362.98% of the average value of its portfolio.
Portfolio Turnover, Rate 362.98%