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 |
|
| Institutional Z | Harding Loevner International Equity Portfolio | Institutional Class Z | ||||||||
| Prospectus [Line Items] | ||||||||
| Annual Return [Percent] | 27.69% | 1.35% | 15.12% | (20.16%) | 8.65% | 20.37% | 25.38% | (13.93%) |