Institutional Class Z [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Institutional Z | Harding Loevner Institutional Emerging Markets Portfolio | Institutional Class Z | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 28.51% | 2.82% | 6.24% | (27.60%) | (3.29%) | 14.03% | 25.97% | (18.53%) | 35.79% | 13.44% |