v3.26.1
Shareholder Report, Line Graph (Details) 1014029_Franklin FTSE South Korea ETF_Single Class_TSR Annual {Single Class} - USD ($)
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Nov. 02, 2017
Mar. 31, 2026
Franklin FTSE South Korea ETF                    
Account Value [Line Items]                    
Line Graph and Table Measure Name                   Franklin FTSE South Korea ETF (NAV)
Accumulated Value $ 8,575 $ 10,395 $ 9,161 $ 10,778 $ 13,008 $ 6,756 $ 8,470 $ 10,183 $ 10,000 $ 18,103
FTSE South Korea Index-NR [Member]                    
Account Value [Line Items]                    
Line Graph and Table Measure Name                   FTSE South Korea Index-NR
Accumulated Value 8,715 10,964 9,517 11,188 13,561 7,054 8,518 10,198 10,000 $ 18,888
FTSE South Korea Capped Index-NR [Member]                    
Account Value [Line Items]                    
Line Graph and Table Measure Name                   FTSE South Korea Capped Index-NR
Accumulated Value $ 8,582 $ 10,400 $ 9,171 $ 10,796 $ 13,023 $ 6,758 $ 8,496 $ 10,221 $ 10,000 $ 18,142