v3.25.2
S000093506 [Member] Investment Objectives and Goals - NT 1-5 Year Inflation-Linked Ladder ETF
Aug. 05, 2025
Prospectus [Line Items]  
Risk/Return [Heading] NORTHERN TRUST 2030 TAX‑EXEMPT DISTRIBUTING LADDER ETF
Objective [Heading] INVESTMENT OBJECTIVE
Objective, Primary [Text Block]
The Fund seeks to provide periodic distributions consisting of income exempt from regular federal income tax and/or principal through 2030.