| Form N-CSR Cover | 12 Months Ended |
| Jun. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Frontier Funds, Inc. |
| Entity Central Index Key | 0001014913 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Shareholder Report | 12 Months Ended |
| Jun. 30, 2024 USD ($) $ / shares | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Frontier Funds, Inc. |
| Entity Central Index Key | 0001014913 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Institutional Class | |
| Shareholder Report [Line Items] | |
| Fund Name | Frontier MFG Global Sustainable Fund |
| Class Name | Institutional Class |
| Trading Symbol | FMSGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Frontier MFG Global Sustainable Fund for the period of July 1, 2023, to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://frontiermutualfunds.com/resources/ . You can also request this information by contacting us at 888-825-2100 . |
| Additional Information Phone Number | 888-825-2100 |
| Additional Information Website | https://frontiermutualfunds.com/resources/ |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE PAST YEAR? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Class $89 0.80% |
| Expenses Paid, Amount | $ 89 |
| Expense Ratio, Percent | 0.80% |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the 12-month period ended June 30, 2024, the Fund outperformed its benchmark, the MSCI World Index (Net). WHAT FACTORS INFLUENCED PERFORMANCE The Fund delivered strong returns over the 12-month period ended June 30, 2024. Much of the market gains over the past two years have been driven by low starting valuations as well as strong fundamentals, with the economy performing better than anticipated and many portfolio companies delivering substantial revenue and earnings growth over the period underpinned by structural tailwinds such as the shift to the cloud and the emergence of Generative AI. POSITIONING Key contributors included Alphabet, Meta and Taiwan Semiconductor (“TMSC”). Alphabet delivered strong returns over the year reflecting earnings growth as improving ad spend resulted in an acceleration in Search revenue and the company carefully managed expenses. Following some early missteps, the company also reassured on its Generative AI roadmap, with leading models and increasing integration of AI features into their services such as Search, Google Cloud Platform, YouTube and Maps. Meta’s performance was driven by strong top-line results throughout the year, owing to growing monetisation of its recommendation feeds and Reels format, heightened demand from Chinese advertisers and improvements in its ad performance (resulting in better advertiser returns). This top-line strength was supported by disciplined cost control. TSMC had a strong year as demand for semiconductors grew, partly reflecting contributions from AI-related chips where the company enjoys a virtual monopoly on leading-edge AI chip manufacturing. Key detractors included Reckitt Benckiser, Nestlé and Dollar General. Reckitt’s share price experienced a significant impact due to an unexpected jury award in connection with an ongoing lawsuit. Nestlé’s share price has underperformed due to an outage in its vitamins business caused by SAP integration issues that caused the company to lower its 2024 growth outlook. Volume growth has also remained subdued owing to consumer downtrading from inflation. Dollar General was negatively affected by both external and internal factors in the past year. Externally, the absence of government stimulus/support hit its core low-income consumer, and the business faced increasing competition from Walmart, Dollar Tree and Temu. Internally, management made executional missteps that negatively affected store operations and necessitated increased investment. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | ANNUAL AVERAGE TOTAL RETURN (%) 1 Year Since Inception (10/09/2019) Institutional Class 21.81 9.47 MSCI The World Index Net (USD) 20.19 12.83 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Updated Performance Information Location [Text Block] | Visit https://frontiermutualfunds.com/funds/mfg-global-sustainable/ for more recent performance information. |
| Net Assets | $ 28,295,529 |
| Holdings Count | $ / shares | 27 |
| Advisory Fees Paid, Amount | $ 0 |
| Investment Company Portfolio Turnover | 43% |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2024) Net Assets $28,295,529 Number of Holdings 27 Net Advisory Fee $0 Portfolio Turnover 43% |
| Holdings [Text Block] | Top Sectors (%) Consumer Staples 19.1% Financials 17.4% Information Technology 16.4% Consumer Discretionary 14.0% Communication Services 11.1% Health Care 8.1% Real Estate 3.8% Utilities 3.6% Industrials 3.1% Cash & Other 3.4% Top Issuers (%) Microsoft Corp. 7.6% Nestle SA 6.7% Amazon.com, Inc. 6.4% Alphabet, Inc. 6.1% Booking Holdings, Inc. 4.8% Taiwan Semiconductor Mfg. Co. Ltd. - ADR 4.8% Novartis AG 4.2% SAP SE 4.0% Meta Platforms, Inc. 3.9% Intercontinental Exch., Inc. 3.9% Top Countries (%) United States 66.2% Switzerland 10.9% United Kingdom 5.7% Taiwan, Province of China 4.8% Germany 4.0% Spain 3.1% Hong Kong 1.9% Cash & Other 3.4% |
| Updated Prospectus Web Address | https://frontiermutualfunds.com/resources/. |
| Service Class | |
| Shareholder Report [Line Items] | |
| Fund Name | Frontier MFG Global Sustainable Fund |
| Class Name | Service Class |
| Trading Symbol | FMSRX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Frontier MFG Global Sustainable Fund for the period of July 1, 2023, to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://frontiermutualfunds.com/resources/ . You can also request this information by contacting us at 888-825-2100 . |
| Additional Information Phone Number | 888-825-2100 |
| Additional Information Website | https://frontiermutualfunds.com/resources/ |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE PAST YEAR? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Service Class $100 0.90% |
| Expenses Paid, Amount | $ 100 |
| Expense Ratio, Percent | 0.90% |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the 12-month period ended June 30, 2024, the Fund outperformed its benchmark, the MSCI World Index (Net). WHAT FACTORS INFLUENCED PERFORMANCE The Fund delivered strong returns over the 12-month period ended June 30, 2024. Much of the market gains over the past two years have been driven by low starting valuations as well as strong fundamentals, with the economy performing better than anticipated and many portfolio companies delivering substantial revenue and earnings growth over the period underpinned by structural tailwinds such as the shift to the cloud and the emergence of Generative AI. POSITIONING Key contributors included Alphabet, Meta and Taiwan Semiconductor (“TMSC”). Alphabet delivered strong returns over the year reflecting earnings growth as improving ad spend resulted in an acceleration in Search revenue and the company carefully managed expenses. Following some early missteps, the company also reassured on its Generative AI roadmap, with leading models and increasing integration of AI features into their services such as Search, Google Cloud Platform, YouTube and Maps. Meta’s performance was driven by strong top-line results throughout the year, owing to growing monetisation of its recommendation feeds and Reels format, heightened demand from Chinese advertisers and improvements in its ad performance (resulting in better advertiser returns). This top-line strength was supported by disciplined cost control. TSMC had a strong year as demand for semiconductors grew, partly reflecting contributions from AI-related chips where the company enjoys a virtual monopoly on leading-edge AI chip manufacturing. Key detractors included Reckitt Benckiser, Nestlé and Dollar General. Reckitt’s share price experienced a significant impact due to an unexpected jury award in connection with an ongoing lawsuit. Nestlé’s share price has underperformed due to an outage in its vitamins business caused by SAP integration issues that caused the company to lower its 2024 growth outlook. Volume growth has also remained subdued owing to consumer downtrading from inflation. Dollar General was negatively affected by both external and internal factors in the past year. Externally, the absence of government stimulus/support hit its core low-income consumer, and the business faced increasing competition from Walmart, Dollar Tree and Temu. Internally, management made executional missteps that negatively affected store operations and necessitated increased investment. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | ANNUAL AVERAGE TOTAL RETURN (%) 1 Year Since Inception (10/20/2020) Service Class 21.76 8.10 MSCI The World Index Net (USD) 20.19 12.31 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Updated Performance Information Location [Text Block] | Visit https://frontiermutualfunds.com/funds/mfg-global-sustainable/ for more recent performance information. |
| Net Assets | $ 28,295,529 |
| Holdings Count | $ / shares | 27 |
| Advisory Fees Paid, Amount | $ 0 |
| Investment Company Portfolio Turnover | 43% |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2024) Net Assets $28,295,529 Number of Holdings 27 Net Advisory Fee $0 Portfolio Turnover 43% |
| Holdings [Text Block] | Top Sectors (%) Consumer Staples 19.1% Financials 17.4% Information Technology 16.4% Consumer Discretionary 14.0% Communication Services 11.1% Health Care 8.1% Real Estate 3.8% Utilities 3.6% Industrials 3.1% Cash & Other 3.4% Top Issuers (%) Microsoft Corp. 7.6% Nestle SA 6.7% Amazon.com, Inc. 6.4% Alphabet, Inc. 6.1% Booking Holdings, Inc. 4.8% Taiwan Semiconductor Mfg. Co. Ltd. - ADR 4.8% Novartis AG 4.2% SAP SE 4.0% Meta Platforms, Inc. 3.9% Intercontinental Exch., Inc. 3.9% Top Countries (%) United States 66.2% Switzerland 10.9% United Kingdom 5.7% Taiwan, Province of China 4.8% Germany 4.0% Spain 3.1% Hong Kong 1.9% Cash & Other 3.4% |
| Updated Prospectus Web Address | https://frontiermutualfunds.com/resources/. |
| Institutional Class | |
| Shareholder Report [Line Items] | |
| Fund Name | Frontier MFG Core Infrastructure Fund |
| Class Name | Institutional Class |
| Trading Symbol | FMGIX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Frontier MFG Core Infrastructure Fund for the period of July 1, 2023, to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://frontiermutualfunds.com/resources/ . You can also request this information by contacting us at 888-825-2100 . |
| Additional Information Phone Number | 888-825-2100 |
| Additional Information Website | https://frontiermutualfunds.com/resources/ |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE PAST YEAR? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Class $50 0.50% |
| Expenses Paid, Amount | $ 50 |
| Expense Ratio, Percent | 0.50% |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the 12-month period ended June 30, 2024, the Fund underperformed its benchmarks, the MSCI World Index (Net) and the S&P Global Infrastructure Index. WHAT FACTORS INFLUENCED PERFORMANCE The Fund recorded a negative return for the 12 months ended June 30, 2024, as long-term bond rates rose in several key markets, and political risk escalated following the calling of snap elections in the UK and France. The MSCI World Index rose strongly this past year, by 20.19%, fuelled by the significant investments being made to unlock the productivity and growth opportunities that will be enabled by Artificial Intelligence (AI) and Generative AI. At the same time, economic growth has held up well, particularly in the US, despite tight monetary policy around the world to bring inflation back down to acceptable levels of closer to 2%. This reflected an improving outlook in many cyclical sectors as both fiscal policy and strong corporate spending have driven growth. POSITIONING Stocks that contributed most during the year were Ferrovial, Aena and Public Service Enterprise Group. Spain-domiciled road and airport operator Ferrovial rose following the announcement of a higher-than-expected toll increase at its key 407 ETR asset, the sale announcement of most of its stake in Heathrow airport at well above market expectations, and the completion of the company’s dual listing in the United States. Meanwhile, shares of Spanish airport operator Aena lifted following robust monthly traffic growth and strong guidance for the 2024 summer season. Increased investor appetite for U.S. utility Public Service Enterprise Group pushed shares higher as the company pointed to meaningful earnings upside. The largest stock detractors over the year included Cellnex Telecom, Transurban Group and Eversource Energy. Shares of Spanish communications company Cellnex traded down over the year as bond yields in Europe moved higher, also adding to investor concerns about the company’s debt levels. Cellnex shares were also negatively affected by the sale of a material stake in the company by a large shareholder. Australian toll road company Transurban fell on the back of higher rates as well as a government-backed review of toll roads in one of its key markets, New South Wales. Shares of U.S. utility Eversource – in addition to the negative impact of rising U.S. bond yields – were affected by adverse regulatory developments in Connecticut, a jurisdiction accounting for approximately 30% of the company’s earnings. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | ANNUAL AVERAGE TOTAL RETURN (%) 1 Year 5 Year 10 Year Institutional Class (0.89) 2.83 5.02 MSCI The World Index Net (USD) 20.19 11.78 9.16 S&P Global Infrastructure Total Return Index 7.02 4.33 4.58 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Updated Performance Information Location [Text Block] | Visit https://frontiermutualfunds.com/funds/mfg-core-infrastructure/ for more recent performance information. |
| Net Assets | $ 415,702,548 |
| Holdings Count | $ / shares | 92 |
| Advisory Fees Paid, Amount | $ 1,646,469 |
| Investment Company Portfolio Turnover | 19% |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2024) Net Assets $415,702,548 Number of Holdings 92 Net Advisory Fee $1,646,469 Portfolio Turnover 19% |
| Holdings [Text Block] | Top Sectors (%) Integrated Power 28.7% Transmission and Distribution 18.8% Toll Roads 11.6% Airports 9.9% Communications 8.2% Energy Infrastructure 7.5% Water Utilities 5.4% Gas Utilities 5.1% Social 0.9% Cash & Other 3.9% Top Issuers (%) Aena SME SA 3.0% Enbridge, Inc. 3.0% National Grid PLC 3.0% Ferrovial SE 2.9% Cellnex Telecom SA 2.9% TC Energy Corp. 2.9% Transurban Group 2.9% Vinci SA 2.9% Fortis, Inc. 2.6% Hydro One Ltd. 2.3% Top Countries (%) United States 39.2% Canada 13.9% Spain 10.7% United Kingdom 6.5% France 5.8% Italy 5.4% Australia 4.5% Mexico 3.0% New Zealand 1.6% Cash & Other 9.4% |
| Updated Prospectus Web Address | https://frontiermutualfunds.com/resources/. |
| Service Class | |
| Shareholder Report [Line Items] | |
| Fund Name | Frontier MFG Core Infrastructure Fund |
| Class Name | Service Class |
| Trading Symbol | FCIVX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Frontier MFG Core Infrastructure Fund for the period of July 1, 2023, to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://frontiermutualfunds.com/resources/ . You can also request this information by contacting us at 888-825-2100 . |
| Additional Information Phone Number | 888-825-2100 |
| Additional Information Website | https://frontiermutualfunds.com/resources/ |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE PAST YEAR? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Service Class $60 0.60% |
| Expenses Paid, Amount | $ 60 |
| Expense Ratio, Percent | 0.60% |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the 12-month period ended June 30, 2024, the Fund underperformed its benchmarks, the MSCI World Index (Net) and the S&P Global Infrastructure Index. WHAT FACTORS INFLUENCED PERFORMANCE The Fund recorded a negative return for the 12 months ended June 30, 2024, as long-term bond rates rose in several key markets, and political risk escalated following the calling of snap elections in the UK and France. The MSCI World Index rose strongly this past year, by 20.19%, fuelled by the significant investments being made to unlock the productivity and growth opportunities that will be enabled by Artificial Intelligence (AI) and Generative AI. At the same time, economic growth has held up well, particularly in the US, despite tight monetary policy around the world to bring inflation back down to acceptable levels of closer to 2%. This reflected an improving outlook in many cyclical sectors as both fiscal policy and strong corporate spending have driven growth. POSITIONING Stocks that contributed most during the year were Ferrovial, Aena and Public Service Enterprise Group. Spain-domiciled road and airport operator Ferrovial rose following the announcement of a higher-than-expected toll increase at its key 407 ETR asset, the sale announcement of most of its stake in Heathrow airport at well above market expectations, and the completion of the company’s dual listing in the United States. Meanwhile, shares of Spanish airport operator Aena lifted following robust monthly traffic growth and strong guidance for the 2024 summer season. Increased investor appetite for U.S. utility Public Service Enterprise Group pushed shares higher as the company pointed to meaningful earnings upside. The largest stock detractors over the year included Cellnex Telecom, Transurban Group and Eversource Energy. Shares of Spanish communications company Cellnex traded down over the year as bond yields in Europe moved higher, also adding to investor concerns about the company’s debt levels. Cellnex shares were also negatively affected by the sale of a material stake in the company by a large shareholder. Australian toll road company Transurban fell on the back of higher rates as well as a government-backed review of toll roads in one of its key markets, New South Wales. Shares of U.S. utility Eversource – in addition to the negative impact of rising U.S. bond yields – were affected by adverse regulatory developments in Connecticut, a jurisdiction accounting for approximately 30% of the company’s earnings. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | ANNUAL AVERAGE TOTAL RETURN (%) 1 Year 5 Year Since Inception (07/15/2016) Service Class (0.98) 2.72 4.43 MSCI The World Index Net (USD) 20.19 11.78 11.43 S&P Global Infrastructure Total Return Index 7.02 4.33 5.83 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Updated Performance Information Location [Text Block] | Visit https://frontiermutualfunds.com/funds/mfg-core-infrastructure/ for more recent performance information. |
| Net Assets | $ 415,702,548 |
| Holdings Count | $ / shares | 92 |
| Advisory Fees Paid, Amount | $ 1,646,469 |
| Investment Company Portfolio Turnover | 19% |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2024) Net Assets $415,702,548 Number of Holdings 92 Net Advisory Fee $1,646,469 Portfolio Turnover 19% |
| Holdings [Text Block] | Top Sectors (%) Integrated Power 28.7% Transmission and Distribution 18.8% Toll Roads 11.6% Airports 9.9% Communications 8.2% Energy Infrastructure 7.5% Water Utilities 5.4% Gas Utilities 5.1% Social 0.9% Cash & Other 3.9% Top Issuers (%) Aena SME SA 3.0% Enbridge, Inc. 3.0% National Grid PLC 3.0% Ferrovial SE 2.9% Cellnex Telecom SA 2.9% TC Energy Corp. 2.9% Transurban Group 2.9% Vinci SA 2.9% Fortis, Inc. 2.6% Hydro One Ltd. 2.3% Top Countries (%) United States 39.2% Canada 13.9% Spain 10.7% United Kingdom 6.5% France 5.8% Italy 5.4% Australia 4.5% Mexico 3.0% New Zealand 1.6% Cash & Other 9.4% |
| Updated Prospectus Web Address | https://frontiermutualfunds.com/resources/. |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | ||||||||||
| Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2014 | |
| Institutional Class | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Institutional Class | ||||||||||
| Account Value | $ 1,533,692 | $ 1,259,064 | $ 1,052,435 | $ 1,273,743 | $ 1,043,647 | ||||||
| Service Class | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Service Class | ||||||||||
| Account Value | $ 13,332 | 10,949 | 9,173 | 11,107 | |||||||
| Institutional Class | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Institutional Class | ||||||||||
| Account Value | $ 1,631,345 | 1,645,947 | 1,655,951 | 1,602,621 | 1,384,913 | $ 1,418,976 | $ 1,237,631 | $ 1,230,262 | $ 1,151,646 | $ 959,717 | $ 1,000,000 |
| Service Class | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Service Class | ||||||||||
| Account Value | $ 14,127 | 14,269 | 14,366 | 13,926 | 12,044 | 12,351 | 10,778 | 10,714 | |||
| MSCI THE WORLD INDEX Net (USD) [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI The World Index Net (USD) | ||||||||||
| Account Value | $ 1,769,330 | 1,472,084 | 1,242,156 | 1,450,065 | 1,042,880 | ||||||
| MSCI THE WORLD INDEX Net (USD) [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI The World Index Net (USD) | ||||||||||
| Account Value | $ 15,352 | 12,773 | 10,778 | 12,582 | |||||||
| MSCI THE WORLD INDEX Net (USD) [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI The World Index Net (USD) | ||||||||||
| Account Value | $ 2,402,132 | 1,998,575 | 1,686,413 | 1,968,682 | 1,415,867 | 1,376,722 | 1,294,756 | 1,165,530 | 986,102 | 1,014,294 | 1,000,000 |
| S&P Global Infrastructure Total Return Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P Global Infrastructure Total Return Index | ||||||||||
| Account Value | $ 1,564,810 | 1,462,166 | 1,403,690 | 1,329,262 | 1,079,340 | 1,266,242 | 1,128,890 | 1,108,719 | $ 983,691 | $ 948,456 | $ 1,000,000 |
| MSCI THE WORLD INDEX Net (USD) [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI The World Index Net (USD) | ||||||||||
| Account Value | $ 23,670 | 19,694 | 16,618 | 19,399 | 13,952 | 13,566 | 12,758 | 11,485 | |||
| S&P Global Infrastructure Total Return Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P Global Infrastructure Total Return Index | ||||||||||
| Account Value | $ 15,702 | $ 14,672 | $ 14,086 | $ 13,339 | $ 10,831 | $ 12,706 | $ 11,328 | $ 11,126 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 44 Months Ended | 57 Months Ended | 60 Months Ended | 96 Months Ended | 120 Months Ended |
| Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | |
| Institutional Class | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | Institutional Class | |||||
| Average Annual Return, Percent | 21.81% | 9.47% | ||||
| Service Class | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | Service Class | |||||
| Average Annual Return, Percent | 21.76% | 8.10% | ||||
| Institutional Class | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | Institutional Class | |||||
| Average Annual Return, Percent | (0.89%) | 2.83% | 5.02% | |||
| Service Class | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | Service Class | |||||
| Average Annual Return, Percent | (0.98%) | 2.72% | 4.43% | |||
| MSCI THE WORLD INDEX Net (USD) [Member] | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | MSCI The World Index Net (USD) | |||||
| Average Annual Return, Percent | 20.19% | 12.83% | ||||
| MSCI THE WORLD INDEX Net (USD) [Member] | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | MSCI The World Index Net (USD) | |||||
| Average Annual Return, Percent | 20.19% | 12.31% | ||||
| MSCI THE WORLD INDEX Net (USD) [Member] | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | MSCI The World Index Net (USD) | |||||
| Average Annual Return, Percent | 20.19% | 11.78% | 9.16% | |||
| S&P Global Infrastructure Total Return Index [Member] | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | S&P Global Infrastructure Total Return Index | |||||
| Average Annual Return, Percent | 7.02% | 4.33% | 4.58% | |||
| MSCI THE WORLD INDEX Net (USD) [Member] | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | MSCI The World Index Net (USD) | |||||
| Average Annual Return, Percent | 20.19% | 11.78% | 11.43% | |||
| S&P Global Infrastructure Total Return Index [Member] | ||||||
| Average Annual Return [Line Items] | ||||||
| Line Graph and Table Measure Name | S&P Global Infrastructure Total Return Index | |||||
| Average Annual Return, Percent | 7.02% | 4.33% | 5.83% |
| Shareholder Report, Holdings (Details) | Jun. 30, 2024 |
| Institutional Class | Microsoft Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| Institutional Class | Nestle SA [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| Institutional Class | Amazon.com, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| Institutional Class | Alphabet, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| Institutional Class | Booking Holdings, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Institutional Class | Taiwan Semiconductor Mfg. Co. Ltd. - ADR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Institutional Class | Novartis AG [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| Institutional Class | SAP SE [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Institutional Class | Meta Platforms, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Institutional Class | Intercontinental Exch., Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Institutional Class | Cash & Other. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Institutional Class | Consumer Staples [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.10% |
| Institutional Class | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| Institutional Class | Information Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.40% |
| Institutional Class | Consumer Discretionary [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14% |
| Institutional Class | Communication Services [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.10% |
| Institutional Class | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| Institutional Class | Real Estate [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Institutional Class | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| Institutional Class | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Institutional Class | Cash & Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Institutional Class | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 66.20% |
| Institutional Class | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.90% |
| Institutional Class | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| Institutional Class | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Institutional Class | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Institutional Class | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Institutional Class | Hong Kong | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Service Class | Microsoft Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| Service Class | Nestle SA [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| Service Class | Amazon.com, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| Service Class | Alphabet, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| Service Class | Booking Holdings, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Service Class | Taiwan Semiconductor Mfg. Co. Ltd. - ADR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Service Class | Novartis AG [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| Service Class | SAP SE [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Service Class | Meta Platforms, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Service Class | Intercontinental Exch., Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Service Class | Cash & Other. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Service Class | Consumer Staples [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.10% |
| Service Class | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| Service Class | Information Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.40% |
| Service Class | Consumer Discretionary [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14% |
| Service Class | Communication Services [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.10% |
| Service Class | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| Service Class | Real Estate [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Service Class | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| Service Class | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Service Class | Cash & Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Service Class | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 66.20% |
| Service Class | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.90% |
| Service Class | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| Service Class | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Service Class | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Service Class | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Service Class | Hong Kong | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Institutional Class | Aena SME SA [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Institutional Class | Enbridge, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Institutional Class | National Grid PLC [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Institutional Class | Ferrovial SE [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Institutional Class | Cellnex Telecom SA [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Institutional Class | TC Energy Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Institutional Class | Transurban Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Institutional Class | Vinci SA [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Institutional Class | Fortis, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Institutional Class | Hydro One Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Institutional Class | Cash & Other. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| Institutional Class | Transportation Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.80% |
| Institutional Class | Integrated Power [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.70% |
| Institutional Class | Toll Roads [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.60% |
| Institutional Class | Airports [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Institutional Class | Communications [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| Institutional Class | Energy Infrastructure [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.50% |
| Institutional Class | Water Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| Institutional Class | Gas Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| Institutional Class | Social [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Institutional Class | Cash & Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Institutional Class | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.20% |
| Institutional Class | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Institutional Class | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.70% |
| Institutional Class | Canada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.90% |
| Institutional Class | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| Institutional Class | Italy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| Institutional Class | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| Institutional Class | Mexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Institutional Class | New Zealand | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| Service Class | Aena SME SA [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Service Class | Enbridge, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Service Class | National Grid PLC [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Service Class | Ferrovial SE [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Service Class | Cellnex Telecom SA [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Service Class | TC Energy Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Service Class | Transurban Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Service Class | Vinci SA [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Service Class | Fortis, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Service Class | Hydro One Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Service Class | Cash & Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| Service Class | Integrated Power [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.70% |
| Service Class | Transmission and Distribution [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.80% |
| Service Class | Toll Roads [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.60% |
| Service Class | Airports [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Service Class | Communications [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| Service Class | Energy Infrastructure [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.50% |
| Service Class | Water Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| Service Class | Gas Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| Service Class | Social [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Service Class | Cash & Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Service Class | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.20% |
| Service Class | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Service Class | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.70% |
| Service Class | Canada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.90% |
| Service Class | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| Service Class | Italy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| Service Class | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| Service Class | Mexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Service Class | New Zealand | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
