Shareholder Report, Line Graph (Details) 74200004200_Franklin Templeton SMACS Series I_SingleClass_TSR Annual {Class A} - USD ($) |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Aug. 31, 2025 |
Aug. 31, 2024 |
Aug. 31, 2023 |
Aug. 31, 2022 |
Aug. 31, 2021 |
Aug. 31, 2020 |
Aug. 31, 2019 |
Jun. 03, 2019 |
Aug. 31, 2026 |
|
| Class Advisor | |||||||||
| Account Value [Line Items] | |||||||||
| Line Graph and Table Measure Name | Franklin Templeton SMACS: Series I | ||||||||
| Accumulated Value | $ 12,922 | $ 12,013 | $ 10,659 | $ 9,908 | $ 11,372 | $ 9,763 | $ 10,225 | $ 10,000 | $ 13,925 |
| Bloomberg U.S. Aggregate Index [Member] | |||||||||
| Account Value [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | ||||||||
| Accumulated Value | 10,583 | 10,261 | 9,563 | 9,678 | 10,938 | 10,947 | 10,282 | 10,000 | $ 10,783 |
| Bloomberg High Yield Very Liquid Index [Member] | |||||||||
| Account Value [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg High Yield Very Liquid Index | ||||||||
| Accumulated Value | 13,210 | 12,234 | 10,871 | 10,145 | 11,436 | 10,514 | 10,097 | 10,000 | $ 13,885 |
| 50% Bloomberg High Yield Very Liquid Index and 50% Bloomberg U.S. Corporate Index [Member] | |||||||||
| Account Value [Line Items] | |||||||||
| Line Graph and Table Measure Name | 50% Bloomberg High Yield Very Liquid Index and 50% Bloomberg U.S. Corporate Index | ||||||||
| Accumulated Value | $ 12,168 | $ 11,485 | $ 10,353 | $ 9,951 | $ 11,447 | $ 10,837 | $ 10,235 | $ 10,000 | $ 12,597 |