v3.25.4
Investors [Member] Shareholder Fees - Investor - Harding Loevner Frontier Emerging Markets Portfolio - Investor
Oct. 31, 2025
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%