v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
Global Equity - Advisor | Alphabet Inc., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
Global Equity - Advisor | Amazon.com Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Global Equity - Advisor | NVIDIA Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Global Equity - Advisor | Schneider Electric SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
Global Equity - Advisor | Microsoft Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Global Equity - Advisor | Meta Platforms Inc., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Global Equity - Advisor | Netflix Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Global Equity - Advisor | Taiwan Semiconductor Manufacturing Co., Ltd. - Sponsored ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Global Equity - Advisor | ASML Holding NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Global Equity - Advisor | Samsung Electronics Co., Ltd. - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Global Equity - Advisor | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Global Equity - Advisor | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
Global Equity - Advisor | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
Global Equity - Advisor | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
Global Equity - Advisor | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
Global Equity - Advisor | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.80%
Global Equity - Advisor | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
Global Equity - Advisor | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Global Equity - Advisor | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Global Equity - Advisor | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Global Equity - Advisor | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
Global Equity - Advisor | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
Global Equity - Advisor | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
Global Equity - Advisor | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Global Equity - Advisor | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Global Equity - Advisor | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 59.00%
Global Equity - Advisor | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Global Equity - Advisor | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Global Equity - Institutional Class | Alphabet Inc., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
Global Equity - Institutional Class | Amazon.com Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Global Equity - Institutional Class | NVIDIA Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Global Equity - Institutional Class | Schneider Electric SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
Global Equity - Institutional Class | Microsoft Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Global Equity - Institutional Class | Meta Platforms Inc., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Global Equity - Institutional Class | Netflix Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Global Equity - Institutional Class | Taiwan Semiconductor Manufacturing Co., Ltd. - Sponsored ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Global Equity - Institutional Class | ASML Holding NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Global Equity - Institutional Class | Samsung Electronics Co., Ltd. - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Global Equity - Institutional Class | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Global Equity - Institutional Class | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
Global Equity - Institutional Class | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
Global Equity - Institutional Class | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
Global Equity - Institutional Class | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
Global Equity - Institutional Class | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.80%
Global Equity - Institutional Class | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
Global Equity - Institutional Class | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Global Equity - Institutional Class | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Global Equity - Institutional Class | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Global Equity - Institutional Class | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
Global Equity - Institutional Class | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
Global Equity - Institutional Class | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
Global Equity - Institutional Class | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Global Equity - Institutional Class | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Global Equity - Institutional Class | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 59.00%
Global Equity - Institutional Class | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Global Equity - Institutional Class | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Global Equity - Institutional Class Z | Alphabet Inc., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
Global Equity - Institutional Class Z | Amazon.com Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Global Equity - Institutional Class Z | NVIDIA Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Global Equity - Institutional Class Z | Schneider Electric SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
Global Equity - Institutional Class Z | Microsoft Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Global Equity - Institutional Class Z | Meta Platforms Inc., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Global Equity - Institutional Class Z | Netflix Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Global Equity - Institutional Class Z | Taiwan Semiconductor Manufacturing Co., Ltd. - Sponsored ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Global Equity - Institutional Class Z | ASML Holding NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Global Equity - Institutional Class Z | Samsung Electronics Co., Ltd. - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Global Equity - Institutional Class Z | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Global Equity - Institutional Class Z | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
Global Equity - Institutional Class Z | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
Global Equity - Institutional Class Z | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
Global Equity - Institutional Class Z | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
Global Equity - Institutional Class Z | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.80%
Global Equity - Institutional Class Z | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
Global Equity - Institutional Class Z | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Global Equity - Institutional Class Z | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Global Equity - Institutional Class Z | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Global Equity - Institutional Class Z | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
Global Equity - Institutional Class Z | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
Global Equity - Institutional Class Z | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
Global Equity - Institutional Class Z | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Global Equity - Institutional Class Z | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Global Equity - Institutional Class Z | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 59.00%
Global Equity - Institutional Class Z | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Global Equity - Institutional Class Z | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
International Equity - Institutional Class | Manulife Financial Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
International Equity - Institutional Class | Shell plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
International Equity - Institutional Class | Taiwan Semiconductor Manufacturing Co., Ltd. - Sponsored ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
International Equity - Institutional Class | AIA Group Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
International Equity - Institutional Class | Rio Tinto plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
International Equity - Institutional Class | Banco Bilbao Vizcaya Argentaria SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
International Equity - Institutional Class | Samsung Electronics Co., Ltd. - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
International Equity - Institutional Class | Delta Electronics Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
International Equity - Institutional Class | Contemporary Amperex Technology Co., Ltd., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
International Equity - Institutional Class | Northern Institutional Funds - Treasury Portfolio (Premier Shares) [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
International Equity - Institutional Class | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
International Equity - Institutional Class | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
International Equity - Institutional Class | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
International Equity - Institutional Class | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
International Equity - Institutional Class | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.40%
International Equity - Institutional Class | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
International Equity - Institutional Class | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
International Equity - Institutional Class | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
International Equity - Institutional Class | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
International Equity - Institutional Class | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
International Equity - Institutional Class | Other Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
International Equity - Institutional Class | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.60%
International Equity - Institutional Class | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.30%
International Equity - Institutional Class | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.10%
International Equity - Institutional Class | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
International Equity - Institutional Class | Middle East [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
International Equity - Institutional Class | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
International Equity - Institutional Class | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
International Equity - Institutional Class | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
International Equity - Institutional Class Z [Member] | Manulife Financial Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
International Equity - Institutional Class Z [Member] | Shell plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
International Equity - Institutional Class Z [Member] | Taiwan Semiconductor Manufacturing Co., Ltd. - Sponsored ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
International Equity - Institutional Class Z [Member] | AIA Group Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
International Equity - Institutional Class Z [Member] | Rio Tinto plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
International Equity - Institutional Class Z [Member] | Banco Bilbao Vizcaya Argentaria SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
International Equity - Institutional Class Z [Member] | Samsung Electronics Co., Ltd. - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
International Equity - Institutional Class Z [Member] | Delta Electronics Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
International Equity - Institutional Class Z [Member] | Contemporary Amperex Technology Co., Ltd., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
International Equity - Institutional Class Z [Member] | Northern Institutional Funds - Treasury Portfolio (Premier Shares) [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
International Equity - Institutional Class Z [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
International Equity - Institutional Class Z [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
International Equity - Institutional Class Z [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
International Equity - Institutional Class Z [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
International Equity - Institutional Class Z [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.40%
International Equity - Institutional Class Z [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
International Equity - Institutional Class Z [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
International Equity - Institutional Class Z [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
International Equity - Institutional Class Z [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
International Equity - Institutional Class Z [Member] | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
International Equity - Institutional Class Z [Member] | Other Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
International Equity - Institutional Class Z [Member] | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.60%
International Equity - Institutional Class Z [Member] | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.30%
International Equity - Institutional Class Z [Member] | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.10%
International Equity - Institutional Class Z [Member] | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
International Equity - Institutional Class Z [Member] | Middle East [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
International Equity - Institutional Class Z [Member] | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
International Equity - Institutional Class Z [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
International Equity - Institutional Class Z [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
International Equity - Investor Class | Manulife Financial Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
International Equity - Investor Class | Shell plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
International Equity - Investor Class | Taiwan Semiconductor Manufacturing Co., Ltd. - Sponsored ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
International Equity - Investor Class | AIA Group Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
International Equity - Investor Class | Rio Tinto plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
International Equity - Investor Class | Banco Bilbao Vizcaya Argentaria SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
International Equity - Investor Class | Samsung Electronics Co., Ltd. - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
International Equity - Investor Class | Delta Electronics Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
International Equity - Investor Class | Contemporary Amperex Technology Co., Ltd., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
International Equity - Investor Class | Northern Institutional Funds - Treasury Portfolio (Premier Shares) [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
International Equity - Investor Class | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
International Equity - Investor Class | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
International Equity - Investor Class | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
International Equity - Investor Class | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
International Equity - Investor Class | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.40%
International Equity - Investor Class | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
International Equity - Investor Class | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
International Equity - Investor Class | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
International Equity - Investor Class | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
International Equity - Investor Class | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
International Equity - Investor Class | Other Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
International Equity - Investor Class | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.60%
International Equity - Investor Class | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.30%
International Equity - Investor Class | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.10%
International Equity - Investor Class | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
International Equity - Investor Class | Middle East [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
International Equity - Investor Class | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
International Equity - Investor Class | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
International Equity - Investor Class | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
International Developed Markets Equity - Institutional Class | Shell plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
International Developed Markets Equity - Institutional Class | Taiwan Semiconductor Manufacturing Co., Ltd. - Sponsored ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
International Developed Markets Equity - Institutional Class | AIA Group Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
International Developed Markets Equity - Institutional Class | Allianz SE, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
International Developed Markets Equity - Institutional Class | Rio Tinto plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
International Developed Markets Equity - Institutional Class | ASML Holding NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
International Developed Markets Equity - Institutional Class | Banco Bilbao Vizcaya Argentaria SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
International Developed Markets Equity - Institutional Class | BAE Systems plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
International Developed Markets Equity - Institutional Class | Samsung Electronics Co., Ltd. - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
International Developed Markets Equity - Institutional Class | Northern Institutional Funds - Treasury Portfolio (Premier Shares) [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
International Developed Markets Equity - Institutional Class | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.30%
International Developed Markets Equity - Institutional Class | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
International Developed Markets Equity - Institutional Class | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
International Developed Markets Equity - Institutional Class | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.00%
International Developed Markets Equity - Institutional Class | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.40%
International Developed Markets Equity - Institutional Class | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
International Developed Markets Equity - Institutional Class | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
International Developed Markets Equity - Institutional Class | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
International Developed Markets Equity - Institutional Class | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
International Developed Markets Equity - Institutional Class | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 31.00%
International Developed Markets Equity - Institutional Class | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.70%
International Developed Markets Equity - Institutional Class | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
International Developed Markets Equity - Institutional Class | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
International Developed Markets Equity - Institutional Class | Middle East [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
International Developed Markets Equity - Institutional Class | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
International Developed Markets Equity - Institutional Class | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 19.20%
International Developed Markets Equity - Institutional Class | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
International Small Companies - Institutional Class | Clarkson plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
International Small Companies - Institutional Class | Rubis SCA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
International Small Companies - Institutional Class | Cranswick plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
International Small Companies - Institutional Class | KWS Saat SE & Co. KGaA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
International Small Companies - Institutional Class | Silergy Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
International Small Companies - Institutional Class | Diploma plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
International Small Companies - Institutional Class | Kinaxis Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
International Small Companies - Institutional Class | Artea Bankas AB [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
International Small Companies - Institutional Class | ASPEED Technology Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
International Small Companies - Institutional Class | Hoa Phat Group JSC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
International Small Companies - Institutional Class | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
International Small Companies - Institutional Class | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.80%
International Small Companies - Institutional Class | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
International Small Companies - Institutional Class | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
International Small Companies - Institutional Class | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
International Small Companies - Institutional Class | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.20%
International Small Companies - Institutional Class | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
International Small Companies - Institutional Class | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
International Small Companies - Institutional Class | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
International Small Companies - Institutional Class | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
International Small Companies - Institutional Class | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
International Small Companies - Institutional Class | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.50%
International Small Companies - Institutional Class | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.40%
International Small Companies - Institutional Class | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.30%
International Small Companies - Institutional Class | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
International Small Companies - Institutional Class | Frontier Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
International Small Companies - Institutional Class | Middle East [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
International Small Companies - Institutional Class | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
International Small Companies - Institutional Class | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
International Small Companies - Institutional Class | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
International Small Companies - Institutional Class Z | Clarkson plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
International Small Companies - Institutional Class Z | Rubis SCA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
International Small Companies - Institutional Class Z | Cranswick plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
International Small Companies - Institutional Class Z | KWS Saat SE & Co. KGaA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
International Small Companies - Institutional Class Z | Silergy Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
International Small Companies - Institutional Class Z | Diploma plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
International Small Companies - Institutional Class Z | Kinaxis Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
International Small Companies - Institutional Class Z | Artea Bankas AB [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
International Small Companies - Institutional Class Z | ASPEED Technology Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
International Small Companies - Institutional Class Z | Hoa Phat Group JSC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
International Small Companies - Institutional Class Z | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
International Small Companies - Institutional Class Z | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.80%
International Small Companies - Institutional Class Z | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
International Small Companies - Institutional Class Z | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
International Small Companies - Institutional Class Z | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
International Small Companies - Institutional Class Z | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.20%
International Small Companies - Institutional Class Z | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
International Small Companies - Institutional Class Z | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
International Small Companies - Institutional Class Z | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
International Small Companies - Institutional Class Z | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
International Small Companies - Institutional Class Z | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
International Small Companies - Institutional Class Z | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.50%
International Small Companies - Institutional Class Z | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.40%
International Small Companies - Institutional Class Z | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.30%
International Small Companies - Institutional Class Z | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
International Small Companies - Institutional Class Z | Frontier Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
International Small Companies - Institutional Class Z | Middle East [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
International Small Companies - Institutional Class Z | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
International Small Companies - Institutional Class Z | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
International Small Companies - Institutional Class Z | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
International Small Companies - Investor Class | Clarkson plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
International Small Companies - Investor Class | Rubis SCA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
International Small Companies - Investor Class | Cranswick plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
International Small Companies - Investor Class | KWS Saat SE & Co. KGaA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
International Small Companies - Investor Class | Silergy Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
International Small Companies - Investor Class | Diploma plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
International Small Companies - Investor Class | Kinaxis Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
International Small Companies - Investor Class | Artea Bankas AB [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
International Small Companies - Investor Class | ASPEED Technology Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
International Small Companies - Investor Class | Hoa Phat Group JSC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
International Small Companies - Investor Class | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
International Small Companies - Investor Class | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.80%
International Small Companies - Investor Class | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
International Small Companies - Investor Class | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
International Small Companies - Investor Class | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
International Small Companies - Investor Class | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.20%
International Small Companies - Investor Class | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
International Small Companies - Investor Class | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
International Small Companies - Investor Class | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
International Small Companies - Investor Class | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
International Small Companies - Investor Class | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
International Small Companies - Investor Class | Europe ex EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.50%
International Small Companies - Investor Class | Europe EMU [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.40%
International Small Companies - Investor Class | Emerging Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.30%
International Small Companies - Investor Class | Pacific ex Japan [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
International Small Companies - Investor Class | Frontier Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
International Small Companies - Investor Class | Middle East [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
International Small Companies - Investor Class | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
International Small Companies - Investor Class | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
International Small Companies - Investor Class | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Institutional Emerging Markets - Institutional Class | Taiwan Semiconductor Manufacturing Co., Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
Institutional Emerging Markets - Institutional Class | Samsung Electronics Co., Ltd. - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
Institutional Emerging Markets - Institutional Class | SK hynix Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Institutional Emerging Markets - Institutional Class | Tencent Holdings Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Institutional Emerging Markets - Institutional Class | ASPEED Technology Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Institutional Emerging Markets - Institutional Class | Delta Electronics Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Institutional Emerging Markets - Institutional Class | Contemporary Amperex Technology Co., Ltd., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Institutional Emerging Markets - Institutional Class | HDFC Bank Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Institutional Emerging Markets - Institutional Class | Alibaba Group Holding Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Institutional Emerging Markets - Institutional Class | Northern Institutional Funds - Treasury Portfolio (Premier Shares) [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Institutional Emerging Markets - Institutional Class | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
Institutional Emerging Markets - Institutional Class | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
Institutional Emerging Markets - Institutional Class | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.30%
Institutional Emerging Markets - Institutional Class | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40%
Institutional Emerging Markets - Institutional Class | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 29.70%
Institutional Emerging Markets - Institutional Class | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
Institutional Emerging Markets - Institutional Class | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Institutional Emerging Markets - Institutional Class | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Institutional Emerging Markets - Institutional Class | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Institutional Emerging Markets - Institutional Class | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Institutional Emerging Markets - Institutional Class | China + Hong Kong [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.40%
Institutional Emerging Markets - Institutional Class | Frontier Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
Institutional Emerging Markets - Institutional Class | Middle East [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Institutional Emerging Markets - Institutional Class | Rest of Asia [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Institutional Emerging Markets - Institutional Class | Africa [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Institutional Emerging Markets - Institutional Class | Latin America [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
Institutional Emerging Markets - Institutional Class | Developed Market Listed [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
Institutional Emerging Markets - Institutional Class | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Institutional Emerging Markets - Institutional Class | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 17.90%
Institutional Emerging Markets - Institutional Class | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
Institutional Emerging Markets - Institutional Class | India  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
Institutional Emerging Markets - Institutional Class Z | Taiwan Semiconductor Manufacturing Co., Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
Institutional Emerging Markets - Institutional Class Z | Samsung Electronics Co., Ltd. - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
Institutional Emerging Markets - Institutional Class Z | SK hynix Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Institutional Emerging Markets - Institutional Class Z | Tencent Holdings Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Institutional Emerging Markets - Institutional Class Z | ASPEED Technology Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Institutional Emerging Markets - Institutional Class Z | Delta Electronics Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Institutional Emerging Markets - Institutional Class Z | Contemporary Amperex Technology Co., Ltd., Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Institutional Emerging Markets - Institutional Class Z | HDFC Bank Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Institutional Emerging Markets - Institutional Class Z | Alibaba Group Holding Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Institutional Emerging Markets - Institutional Class Z | Northern Institutional Funds - Treasury Portfolio (Premier Shares) [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Institutional Emerging Markets - Institutional Class Z | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
Institutional Emerging Markets - Institutional Class Z | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
Institutional Emerging Markets - Institutional Class Z | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.30%
Institutional Emerging Markets - Institutional Class Z | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40%
Institutional Emerging Markets - Institutional Class Z | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 29.70%
Institutional Emerging Markets - Institutional Class Z | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
Institutional Emerging Markets - Institutional Class Z | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Institutional Emerging Markets - Institutional Class Z | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Institutional Emerging Markets - Institutional Class Z | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Institutional Emerging Markets - Institutional Class Z | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Institutional Emerging Markets - Institutional Class Z | China + Hong Kong [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.40%
Institutional Emerging Markets - Institutional Class Z | Frontier Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
Institutional Emerging Markets - Institutional Class Z | Middle East [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Institutional Emerging Markets - Institutional Class Z | Rest of Asia [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Institutional Emerging Markets - Institutional Class Z | Africa [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Institutional Emerging Markets - Institutional Class Z | Latin America [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
Institutional Emerging Markets - Institutional Class Z | Developed Market Listed [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
Institutional Emerging Markets - Institutional Class Z | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Institutional Emerging Markets - Institutional Class Z | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 17.90%
Institutional Emerging Markets - Institutional Class Z | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
Institutional Emerging Markets - Institutional Class Z | India  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
Frontier Emerging Markets - Institutional Class | Northern Institutional Funds - Treasury Portfolio (Premier Shares) [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Frontier Emerging Markets - Institutional Class | Credicorp Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Frontier Emerging Markets - Institutional Class | International Container Terminal Services Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Frontier Emerging Markets - Institutional Class | Mobile World Investment Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Frontier Emerging Markets - Institutional Class | Banca Transilvania SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Frontier Emerging Markets - Institutional Class | Societe d'Exploitation des Ports [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Frontier Emerging Markets - Institutional Class | NAC Kazatomprom JSC - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Frontier Emerging Markets - Institutional Class | Grupo Cibest SA - ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Frontier Emerging Markets - Institutional Class | Hoa Phat Group JSC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Frontier Emerging Markets - Institutional Class | Kaspi.KZ JSC - ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Frontier Emerging Markets - Institutional Class | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.70%
Frontier Emerging Markets - Institutional Class | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
Frontier Emerging Markets - Institutional Class | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
Frontier Emerging Markets - Institutional Class | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
Frontier Emerging Markets - Institutional Class | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
Frontier Emerging Markets - Institutional Class | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
Frontier Emerging Markets - Institutional Class | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Frontier Emerging Markets - Institutional Class | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
Frontier Emerging Markets - Institutional Class | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Frontier Emerging Markets - Institutional Class | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Frontier Emerging Markets - Institutional Class | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Frontier Emerging Markets - Institutional Class | Asia [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.30%
Frontier Emerging Markets - Institutional Class | Europe [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.00%
Frontier Emerging Markets - Institutional Class | Africa [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
Frontier Emerging Markets - Institutional Class | Latin America [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
Frontier Emerging Markets - Institutional Class | Developed Market Listed [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
Frontier Emerging Markets - Institutional Class | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Frontier Emerging Markets - Institutional Class | Gulf States [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Frontier Emerging Markets - Institutional Class Z | Northern Institutional Funds - Treasury Portfolio (Premier Shares) [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Frontier Emerging Markets - Institutional Class Z | Credicorp Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Frontier Emerging Markets - Institutional Class Z | International Container Terminal Services Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Frontier Emerging Markets - Institutional Class Z | Mobile World Investment Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Frontier Emerging Markets - Institutional Class Z | Banca Transilvania SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Frontier Emerging Markets - Institutional Class Z | Societe d'Exploitation des Ports [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Frontier Emerging Markets - Institutional Class Z | NAC Kazatomprom JSC - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Frontier Emerging Markets - Institutional Class Z | Grupo Cibest SA - ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Frontier Emerging Markets - Institutional Class Z | Hoa Phat Group JSC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Frontier Emerging Markets - Institutional Class Z | Kaspi.KZ JSC - ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Frontier Emerging Markets - Institutional Class Z | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.70%
Frontier Emerging Markets - Institutional Class Z | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
Frontier Emerging Markets - Institutional Class Z | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
Frontier Emerging Markets - Institutional Class Z | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
Frontier Emerging Markets - Institutional Class Z | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
Frontier Emerging Markets - Institutional Class Z | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
Frontier Emerging Markets - Institutional Class Z | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Frontier Emerging Markets - Institutional Class Z | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
Frontier Emerging Markets - Institutional Class Z | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Frontier Emerging Markets - Institutional Class Z | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Frontier Emerging Markets - Institutional Class Z | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Frontier Emerging Markets - Institutional Class Z | Asia [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.30%
Frontier Emerging Markets - Institutional Class Z | Europe [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.00%
Frontier Emerging Markets - Institutional Class Z | Africa [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
Frontier Emerging Markets - Institutional Class Z | Latin America [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
Frontier Emerging Markets - Institutional Class Z | Developed Market Listed [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
Frontier Emerging Markets - Institutional Class Z | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Frontier Emerging Markets - Institutional Class Z | Gulf States [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Frontier Emerging Markets - Investor Class | Northern Institutional Funds - Treasury Portfolio (Premier Shares) [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Frontier Emerging Markets - Investor Class | Credicorp Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Frontier Emerging Markets - Investor Class | International Container Terminal Services Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Frontier Emerging Markets - Investor Class | Mobile World Investment Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Frontier Emerging Markets - Investor Class | Banca Transilvania SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Frontier Emerging Markets - Investor Class | Societe d'Exploitation des Ports [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Frontier Emerging Markets - Investor Class | NAC Kazatomprom JSC - GDR, Reg S [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Frontier Emerging Markets - Investor Class | Grupo Cibest SA - ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Frontier Emerging Markets - Investor Class | Hoa Phat Group JSC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Frontier Emerging Markets - Investor Class | Kaspi.KZ JSC - ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Frontier Emerging Markets - Investor Class | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.70%
Frontier Emerging Markets - Investor Class | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
Frontier Emerging Markets - Investor Class | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
Frontier Emerging Markets - Investor Class | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
Frontier Emerging Markets - Investor Class | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
Frontier Emerging Markets - Investor Class | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
Frontier Emerging Markets - Investor Class | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Frontier Emerging Markets - Investor Class | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
Frontier Emerging Markets - Investor Class | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Frontier Emerging Markets - Investor Class | Cash Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Frontier Emerging Markets - Investor Class | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Frontier Emerging Markets - Investor Class | Asia [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.30%
Frontier Emerging Markets - Investor Class | Europe [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.00%
Frontier Emerging Markets - Investor Class | Africa [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
Frontier Emerging Markets - Investor Class | Latin America [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
Frontier Emerging Markets - Investor Class | Developed Market Listed [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
Frontier Emerging Markets - Investor Class | Cash on Geographical Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Frontier Emerging Markets - Investor Class | Gulf States [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%