Average Annual Total Returns - Multi Trust Funds		12 Months Ended	30 Months Ended	60 Months Ended	64 Months Ended
Average Annual Total Returns - Multi Trust Funds	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Natixis Loomis Sayles Focused Growth ETF
Prospectus [Line Items]
Performance Inception Date	Jun. 28, 2023
Natixis Loomis Sayles Focused Growth ETF \| Russell 1000® Growth Index
Prospectus [Line Items]
Average Annual Return, Percent		18.56%	25.63%
Natixis Loomis Sayles Focused Growth ETF \| S&P 500® Index
Prospectus [Line Items]
Average Annual Return, Percent		17.88%	21.08%
Natixis Loomis Sayles Focused Growth ETF \| Natixis Loomis Sayles Focused Growth ETF
Prospectus [Line Items]
Average Annual Return, Percent		15.44%	26.17%
Natixis Loomis Sayles Focused Growth ETF \| Natixis Loomis Sayles Focused Growth ETF \| After Taxes on Distributions
Prospectus [Line Items]
Average Annual Return, Percent		15.42%	26.15%
Natixis Loomis Sayles Focused Growth ETF \| Natixis Loomis Sayles Focused Growth ETF \| After Taxes on Distributions and Sales
Prospectus [Line Items]
Average Annual Return, Percent		9.15%	20.70%
Natixis Vaughan Nelson Select ETF
Prospectus [Line Items]
Performance Inception Date	Sep. 16, 2020
Natixis Vaughan Nelson Select ETF \| S&P 500® Index
Prospectus [Line Items]
Average Annual Return, Percent		17.88%		14.42%	15.88%
Natixis Vaughan Nelson Select ETF \| N
Prospectus [Line Items]
Average Annual Return, Percent		13.61%		12.30%	13.68%
Natixis Vaughan Nelson Select ETF \| N \| After Taxes on Distributions
Prospectus [Line Items]
Average Annual Return, Percent		13.55%		10.40%	11.87%
Natixis Vaughan Nelson Select ETF \| N \| After Taxes on Distributions and Sales
Prospectus [Line Items]
Average Annual Return, Percent		8.10%		8.94%	10.16%