Advisor [Member] Expense Example - Advisor - Harding Loevner Global Equity Portfolio - Advisor Class	Oct. 31, 2025 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 111
Expense Example, with Redemption, 3 Years	347
Expense Example, with Redemption, 5 Years	601
Expense Example, with Redemption, 10 Years	$ 1,329

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