Investors [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 |
|
| Investor | Harding Loevner International Small Companies Portfolio | INVESTOR | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 14.84% | (6.91%) | 11.77% | (24.52%) | 12.86% | 18.51% | 29.45% | (17.61%) | 34.42% | 0.06% |