| Form N-CSR Cover | 6 Months Ended |
| Dec. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | FORUM FUNDS |
| Entity Central Index Key | 0000315774 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Dec. 31, 2024 |
| Shareholder Report | 6 Months Ended | |||
| Dec. 03, 2021 | Nov. 29, 2017 | Nov. 20, 2017 | Dec. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | ||||
| Document Type | N-CSRS | |||
| Amendment Flag | false | |||
| Registrant Name | FORUM FUNDS | |||
| Entity Central Index Key | 0000315774 | |||
| Entity Investment Company Type | N-1A | |||
| Document Period End Date | Dec. 31, 2024 | |||
| C000012489 | ||||
| Shareholder Report [Line Items] | ||||
| Fund Name | DF Dent Premier Growth Fund | |||
| Trading Symbol | DFDPX | |||
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Premier Growth Fund for the period of July 1, 2024, to December 31, 2024. | |||
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report | |||
| Additional Information [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Premier Growth Fund for the period of July 1, 2024, to December 31, 2024. You can find additional information about the Fund at https://dfdent.com/literature/. You can also request this information by contacting us at (866) 233-3368. | |||
| Additional Information Phone Number | (866) 233-3368 | |||
| Additional Information Website | https://dfdent.com/literature/ | |||
| Expenses [Text Block] | What were the Fund's costs for the last six months? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment DF Dent Premier Growth Fund $51 0.99% | |||
| Expenses Paid, Amount | $ 51 | |||
| Expense Ratio, Percent | 0.99% | |||
| Factors Affecting Performance [Text Block] | How did the Fund perform in the last six months? During the period from July 2024 to December 2024, the DF Dent Premier Growth Fund underperformed its benchmark, the S&P 500 Index. The underperformance was influenced by both sector allocation and stock selection. The largest detractors were stock selection in Industrials and Information Technology and an overweight to Health Care. Within Information Technology, our position in semiconductors has broadly detracted from performance. Both stock selection and our underweight to Consumer Discretionary also detracted from performance. Notably, the Real Estate and Health Care sectors contributed positively to the portfolio’s performance, as did an underweight in the Energy sector. The Consumer Discretionary and Financials sectors were the largest contributors to the benchmark’s return. In the Fund, the Consumer Discretionary sector underperformed, driven by both stock selection and sector allocation. Similarly, the Industrials sector underperformed in the portfolio due to stock selection. The Energy and Health Care sectors detracted the most from the benchmark’s performance. The Fund experienced fluctuating performance relative to the S&P 500 Index, starting with a positive July, followed by losses through October. A slight recovery was observed in November, but the year concluded with a significant decline in December. Initially the outperformance was driven by positive stock selection and favorable sector allocation, but the subsequent months, particularly December, showed a reversal with both stock selection and sector allocation contributing to the underperformance. Top Contributors CBRE Group, Inc., Class A Visa, Inc., Class A Mastercard, Inc., Class A Amazon.com, Inc. Guidewire Software, Inc. Top Detractors Monolithic Power Systems, Inc. ASML Holding NV Uber Technologies, Inc. Danaher Corp. Microsoft Corp. | |||
| 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] | Date DF Dent Premier Growth Fund S&P 500 ® 12/31/14 $10,000 $10,000 03/31/15 $10,073 $10,095 06/30/15 $10,279 $10,123 09/30/15 $9,706 $9,471 12/31/15 $10,154 $10,138 03/31/16 $9,919 $10,275 06/30/16 $10,067 $10,527 09/30/16 $10,624 $10,933 12/31/16 $10,401 $11,351 03/31/17 $11,197 $12,039 06/30/17 $12,144 $12,411 09/30/17 $12,914 $12,967 12/31/17 $13,712 $13,829 03/31/18 $14,505 $13,724 06/30/18 $15,176 $14,195 09/30/18 $16,418 $15,290 12/31/18 $13,967 $13,223 03/31/19 $16,739 $15,027 06/30/19 $18,384 $15,674 09/30/19 $18,610 $15,940 12/31/19 $19,958 $17,386 03/31/20 $16,917 $13,979 06/30/20 $21,476 $16,850 09/30/20 $22,889 $18,355 12/31/20 $25,612 $20,585 03/31/21 $25,516 $21,856 06/30/21 $28,125 $23,724 09/30/21 $28,306 $23,862 12/31/21 $29,997 $26,494 03/31/22 $26,763 $25,276 06/30/22 $21,644 $21,206 09/30/22 $20,294 $20,170 12/31/22 $21,583 $21,696 03/31/23 $23,237 $23,322 06/30/23 $24,951 $25,361 09/30/23 $23,626 $24,531 12/31/23 $26,853 $27,399 03/31/24 $29,370 $30,291 06/30/24 $28,912 $31,589 09/30/24 $31,283 $33,448 12/31/24 $30,789 $34,254 | |||
| Average Annual Return [Table Text Block] | One Year Five Year Ten Year DF Dent Premier Growth Fund 14.66% 9.06% 11.90% S&P 500 ® 25.02% 14.53% 13.10% | |||
| 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. | |||
| Performance Table Market Index Changed [Text Block] | ||||
| Updated Performance Information Location [Text Block] | ||||
| AssetsNet | $ 229,987,612 | |||
| Holdings Count | Holding | 40 | |||
| Advisory Fees Paid, Amount | $ 1,012,285 | |||
| InvestmentCompanyPortfolioTurnover | 7% | |||
| Additional Fund Statistics [Text Block] | Fund Statistics Total Net Assets $229,987,612 # of Portfolio Holdings 40 Portfolio Turnover Rate 7% Investment Advisory Fees (Net of fees waived) $1,012,285 | |||
| Holdings [Text Block] | Sector Weightings (% total investments)* Value Value Information Technology 21.5% Industrials 20.1% Financials 18.5% Health Care 17.9% Materials 7.1% Consumer Discretionary 6.1% Communication Services 4.7% Real Estate 4.1% * excluding cash equivalents | |||
| Largest Holdings [Text Block] | Top Ten Holdings (% total investments)* Amazon.com, Inc. 6.10% Visa, Inc., Class A 5.18% Mastercard, Inc., Class A 4.99% Alphabet, Inc., Class C 4.67% Microsoft Corp. 4.08% S&P Global, Inc. 3.86% HEICO Corp., Class A 3.59% TransDigm Group, Inc. 3.41% Guidewire Software, Inc. 3.20% Danaher Corp. 3.16% * excluding cash equivalents | |||
| C000102025 | ||||
| Shareholder Report [Line Items] | ||||
| Fund Name | DF Dent Midcap Growth Fund | |||
| Class Name | Investor | |||
| Trading Symbol | DFDMX | |||
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Midcap Growth Fund for the period of July 1, 2024, to December 31, 2024. | |||
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report | |||
| Additional Information [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Midcap Growth Fund for the period of July 1, 2024, to December 31, 2024. You can find additional information about the Fund at https://dfdent.com/literature/. You can also request this information by contacting us at (866) 233-3368. | |||
| Additional Information Phone Number | (866) 233-3368 | |||
| Additional Information Website | https://dfdent.com/literature/ | |||
| Expenses [Text Block] | What were the Fund's costs for the last six months? (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 Investor Shares $47 0.90% | |||
| Expenses Paid, Amount | $ 47 | |||
| Expense Ratio, Percent | 0.90% | |||
| Factors Affecting Performance [Text Block] | How did the Fund perform in the last six months? During the period from July 2024 to December 2024, the DF Dent Midcap Growth Fund outperformed the Russell 2500 Index while underperforming the Russell Midcap Growth Index. The outperformance relative to the Russell 2500 Index was driven primarily by stock selection within Real Estate and Financials. Being overweight Technology and underweight Energy also contributed to performance. This was offset by stock selection in Industrials and our overweight to Life Sciences within Health Care as they detracted from performance. The underperformance relative to the Russell Midcap Growth Index was primarily due to our cautious view towards AI-driven investment themes. Not owning AI winners Palantir Technologies, Inc. (PLTR) and AppLovin Corp. (APP) alone accounted for our portfolio’s shortfall for the past 6 months. Stock selection in Industrials and Technology and our overweight to Materials and Healthcare also detracted from performance. On the positive side, stock selection within Financials, Real Estate, and Health Care and being underweight in both Consumer Staples and Consumer Discretionary were the largest contributors to performance. The Fund experienced fluctuating performance relative to the Russell 2500 Index, starting with a positive July and August followed by losses through November. A slight recovery was observed in December. The Fund experienced fluctuating performance relative to the Russell Midcap Growth Index, starting with a positive July, followed by losses through October. A slight recovery was observed in November, but the year concluded with a significant decline in December. Top Contributors Goosehead Insurance, Inc., Class A CBRE Group, Inc., Class A Guidewire Software, Inc. Atlassian Corp., Class A Veeva Systems, Inc., Class A Top Detractors Edwards Lifesciences Corp. Microchip Technology, Inc. Mettler-Toledo International, Inc. WNS Holdings, Ltd. Entegris, Inc. | |||
| 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] | Date Investor Shares Russell 2500 Index Russell Midcap Growth Index 12/31/14 $10,000 $10,000 $10,000 03/31/15 $10,209 $10,517 $10,538 06/30/15 $10,627 $10,481 $10,418 09/30/15 $9,778 $9,402 $9,585 12/31/15 $10,079 $9,710 $9,980 03/31/16 $10,059 $9,748 $10,038 06/30/16 $10,362 $10,096 $10,195 09/30/16 $10,800 $10,759 $10,663 12/31/16 $10,506 $11,418 $10,711 03/31/17 $11,215 $11,847 $11,450 06/30/17 $12,200 $12,099 $11,932 09/30/17 $12,902 $12,673 $12,563 12/31/17 $13,786 $13,337 $13,418 03/31/18 $14,510 $13,305 $13,710 06/30/18 $15,031 $14,065 $14,143 09/30/18 $16,148 $14,725 $15,214 12/31/18 $13,760 $12,003 $12,781 03/31/19 $16,392 $13,902 $15,288 06/30/19 $18,079 $14,313 $16,114 09/30/19 $18,240 $14,130 $16,005 12/31/19 $19,283 $15,336 $17,314 03/31/20 $16,424 $10,778 $13,844 06/30/20 $20,816 $13,641 $18,033 09/30/20 $21,790 $14,443 $19,724 12/31/20 $25,150 $18,402 $23,475 03/31/21 $24,810 $20,413 $23,342 06/30/21 $26,921 $21,524 $25,927 09/30/21 $27,112 $20,947 $25,730 12/31/21 $28,244 $21,748 $26,463 03/31/22 $24,426 $20,483 $23,134 06/30/22 $19,660 $17,005 $18,259 09/30/22 $18,348 $16,526 $18,140 12/31/22 $19,624 $17,753 $19,392 03/31/23 $21,314 $18,355 $21,163 06/30/23 $22,597 $19,314 $22,483 09/30/23 $21,285 $18,390 $21,308 12/31/23 $24,120 $20,846 $24,408 03/31/24 $25,956 $22,289 $26,726 06/30/24 $24,295 $21,336 $25,867 09/30/24 $26,867 $23,202 $27,559 12/31/24 $26,809 $23,347 $29,803 | |||
| Average Annual Return [Table Text Block] | One Year Five Year Ten Year Investor Shares 11.15% 6.81% 10.36% Russell 2500 Index 12.00% 8.77% 8.85% Russell Midcap Growth Index 22.10% 11.47% 11.54% | |||
| 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. | |||
| Performance Table Market Index Changed [Text Block] | Effective June 1, 2024, the Fund changed its primary benchmark index from the Russell Midcap Growth Index to the Russell 2500 Index due to regulatory requirements. The Fund retained the Russell Midcap Growth Index as a secondary benchmark because the Russell Midcap Growth Index more closely reflects the market sectors in which the Fund invests. | |||
| Prior Market Index Comparison [Text Block] | The Fund retained the Russell Midcap Growth Index as a secondary benchmark | |||
| Updated Performance Information Location [Text Block] | ||||
| AssetsNet | $ 407,379,623 | |||
| Holdings Count | Holding | 39 | |||
| Advisory Fees Paid, Amount | $ 1,608,046 | |||
| InvestmentCompanyPortfolioTurnover | 25% | |||
| Additional Fund Statistics [Text Block] | Fund Statistics Total Net Assets $407,379,623 # of Portfolio Holdings 39 Portfolio Turnover Rate 25% Investment Advisory Fees (Net of fees waived) $1,608,046 | |||
| Holdings [Text Block] | Sector Weightings (% total investments)* Value Value Industrials 25.0% Health Care 19.6% Information Technology 18.5% Financials 14.4% Materials 9.9% Real Estate 8.3% Consumer Discretionary 4.3% * excluding cash equivalents | |||
| Largest Holdings [Text Block] | Top Ten Holdings (% total investments)* Vulcan Materials Co. 5.21% Ecolab, Inc. 4.69% Veeva Systems, Inc., Class A 4.55% CoStar Group, Inc. 4.20% CBRE Group, Inc., Class A 4.09% Veralto Corp. 4.02% Markel Group, Inc. 3.97% Bio-Techne Corp. 3.79% HEICO Corp., Class A 3.79% Old Dominion Freight Line, Inc. 3.78% * excluding cash equivalents | |||
| C000195205 | ||||
| Shareholder Report [Line Items] | ||||
| Fund Name | DF Dent Midcap Growth Fund | |||
| Class Name | Institutional | |||
| Trading Symbol | DFMGX | |||
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Midcap Growth Fund for the period of July 1, 2024, to December 31, 2024. | |||
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report | |||
| Additional Information [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Midcap Growth Fund for the period of July 1, 2024, to December 31, 2024. You can find additional information about the Fund at https://dfdent.com/literature/. You can also request this information by contacting us at (866) 233-3368. | |||
| Additional Information Phone Number | (866) 233-3368 | |||
| Additional Information Website | https://dfdent.com/literature/ | |||
| Expenses [Text Block] | What were the Fund's costs for the last six months? (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 Shares $45 0.85% | |||
| Expenses Paid, Amount | $ 45 | |||
| Expense Ratio, Percent | 0.85% | |||
| Factors Affecting Performance [Text Block] | How did the Fund perform in the last six months? During the period from July 2024 to December 2024, the DF Dent Midcap Growth Fund outperformed the Russell 2500 Index while underperforming the Russell Midcap Growth Index. The outperformance relative to the Russell 2500 Index was driven primarily by stock selection within Real Estate and Financials. Being overweight Technology and underweight Energy also contributed to performance. This was offset by stock selection in Industrials and our overweight to Life Sciences within Health Care as they detracted from performance. The underperformance relative to the Russell Midcap Growth Index was primarily due to our cautious view towards AI-driven investment themes. Not owning AI winners Palantir Technologies, Inc. (PLTR) and AppLovin Corp. (APP) alone accounted for our portfolio’s shortfall for the past 6 months. Stock selection in Industrials and Technology and our overweight to Materials and Healthcare also detracted from performance. On the positive side, stock selection within Financials, Real Estate, and Health Care and being underweight in both Consumer Staples and Consumer Discretionary were the largest contributors to performance. The Fund experienced fluctuating performance relative to the Russell 2500 Index, starting with a positive July and August followed by losses through November. A slight recovery was observed in December. The Fund experienced fluctuating performance relative to the Russell Midcap Growth Index, starting with a positive July, followed by losses through October. A slight recovery was observed in November, but the year concluded with a significant decline in December. Top Contributors Goosehead Insurance, Inc., Class A CBRE Group, Inc., Class A Guidewire Software, Inc. Atlassian Corp., Class A Veeva Systems, Inc., Class A Top Detractors Edwards Lifesciences Corp. Microchip Technology, Inc. Mettler-Toledo International, Inc. WNS Holdings, Ltd. Entegris, Inc. | |||
| 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] | Date Institutional Shares Footnote Reference 1 Russell 2500 Index Russell Midcap Growth Index 12/31/14 $500,000 $500,000 $500,000 3/31/15 $510,451 $525,842 $526,890 6/30/15 $531,352 $524,044 $520,880 9/30/15 $488,896 $470,084 $479,264 12/31/15 $503,947 $485,492 $499,001 3/31/16 $502,936 $487,399 $501,890 6/30/16 $518,105 $504,812 $509,732 9/30/16 $540,015 $537,941 $533,139 12/31/16 $525,308 $570,886 $535,571 3/31/17 $560,734 $592,329 $572,493 6/30/17 $609,992 $604,972 $596,625 9/30/17 $645,080 $633,658 $628,144 12/31/17 $689,307 $666,854 $670,897 3/31/18 $725,515 $665,260 $685,485 6/30/18 $751,910 $703,238 $707,129 9/30/18 $808,083 $736,265 $760,691 12/31/18 $688,694 $600,156 $639,026 3/31/19 $820,624 $695,086 $764,409 6/30/19 $905,661 $715,667 $805,701 9/30/19 $913,710 $706,490 $800,274 12/31/19 $966,588 $766,796 $865,686 3/31/20 $823,612 $538,890 $692,203 6/30/20 $1,043,901 $682,045 $901,670 9/30/20 $1,093,325 $722,166 $986,189 12/31/20 $1,262,037 $920,104 $1,173,753 3/31/21 $1,245,040 $1,020,661 $1,167,119 6/30/21 $1,350,918 $1,076,207 $1,296,343 9/30/21 $1,360,833 $1,047,346 $1,286,492 12/31/21 $1,417,427 $1,087,397 $1,323,151 3/31/22 $1,225,814 $1,024,144 $1,156,695 6/30/22 $986,844 $850,234 $912,959 9/30/22 $920,908 $826,277 $906,997 12/31/22 $985,022 $887,651 $969,593 3/31/23 $1,069,900 $917,745 $1,058,174 6/30/23 $1,134,378 $965,696 $1,124,143 9/30/23 $1,068,443 $919,516 $1,065,418 12/31/23 $1,211,242 $1,042,308 $1,220,396 3/31/24 $1,303,406 $1,114,431 $1,336,291 6/30/24 $1,220,349 $1,066,793 $1,293,352 9/30/24 $1,349,306 $1,160,123 $1,377,954 12/31/24 $1,346,391 $1,167,334 $1,490,141 | |||
| Average Annual Return [Table Text Block] | One Year Five Year Ten Year Institutional Shares Footnote Reference 1 11.16% 6.85% 10.41% Russell 2500 Index 12.00% 8.77% 8.85% Russell Midcap Growth Index 22.10% 11.47% 11.54% | |||
| Performance Inception Date | Nov. 29, 2017 | |||
| 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. | |||
| Performance Table Market Index Changed [Text Block] | Effective June 1, 2024, the Fund changed its primary benchmark index from the Russell Midcap Growth Index to the Russell 2500 Index due to regulatory requirements. The Fund retained the Russell Midcap Growth Index as a secondary benchmark because the Russell Midcap Growth Index more closely reflects the market sectors in which the Fund invests. | |||
| Prior Market Index Comparison [Text Block] | The Fund retained the Russell Midcap Growth Index as a secondary benchmark | |||
| AssetsNet | $ 407,379,623 | |||
| Holdings Count | Holding | 39 | |||
| Advisory Fees Paid, Amount | $ 1,608,046 | |||
| InvestmentCompanyPortfolioTurnover | 25% | |||
| Additional Fund Statistics [Text Block] | Fund Statistics Total Net Assets $407,379,623 # of Portfolio Holdings 39 Portfolio Turnover Rate 25% Investment Advisory Fees (Net of fees waived) $1,608,046 | |||
| Holdings [Text Block] | Sector Weightings (% total investments)* Value Value Industrials 25.0% Health Care 19.6% Information Technology 18.5% Financials 14.4% Materials 9.9% Real Estate 8.3% Consumer Discretionary 4.3% * excluding cash equivalents | |||
| Largest Holdings [Text Block] | Top Ten Holdings (% total investments)* Vulcan Materials Co. 5.21% Ecolab, Inc. 4.69% Veeva Systems, Inc., Class A 4.55% CoStar Group, Inc. 4.20% CBRE Group, Inc., Class A 4.09% Veralto Corp. 4.02% Markel Group, Inc. 3.97% Bio-Techne Corp. 3.79% HEICO Corp., Class A 3.79% Old Dominion Freight Line, Inc. 3.78% * excluding cash equivalents | |||
| C000231957 | ||||
| Shareholder Report [Line Items] | ||||
| Fund Name | DF Dent Midcap Growth Fund | |||
| Class Name | Institutional Plus | |||
| Trading Symbol | DFMLX | |||
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Midcap Growth Fund for the period of July 1, 2024, to December 31, 2024. | |||
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report | |||
| Additional Information [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Midcap Growth Fund for the period of July 1, 2024, to December 31, 2024. You can find additional information about the Fund at https://dfdent.com/literature/. You can also request this information by contacting us at (866) 233-3368. | |||
| Additional Information Phone Number | (866) 233-3368 | |||
| Additional Information Website | https://dfdent.com/literature/ | |||
| Expenses [Text Block] | What were the Fund's costs for the last six months? (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 Plus Shares $42 0.79% | |||
| Expenses Paid, Amount | $ 42 | |||
| Expense Ratio, Percent | 0.79% | |||
| Factors Affecting Performance [Text Block] | How did the Fund perform in the last six months? During the period from July 2024 to December 2024, the DF Dent Midcap Growth Fund outperformed the Russell 2500 Index while underperforming the Russell Midcap Growth Index. The outperformance relative to the Russell 2500 Index was driven primarily by stock selection within Real Estate and Financials. Being overweight Technology and underweight Energy also contributed to performance. This was offset by stock selection in Industrials and our overweight to Life Sciences within Health Care as they detracted from performance. The underperformance relative to the Russell Midcap Growth Index was primarily due to our cautious view towards AI-driven investment themes. Not owning AI winners Palantir Technologies, Inc. (PLTR) and AppLovin Corp. (APP) alone accounted for our portfolio’s shortfall for the past 6 months. Stock selection in Industrials and Technology and our overweight to Materials and Healthcare also detracted from performance. On the positive side, stock selection within Financials, Real Estate, and Health Care and being underweight in both Consumer Staples and Consumer Discretionary were the largest contributors to performance. The Fund experienced fluctuating performance relative to the Russell 2500 Index, starting with a positive July and August followed by losses through November. A slight recovery was observed in December. The Fund experienced fluctuating performance relative to the Russell Midcap Growth Index, starting with a positive July, followed by losses through October. A slight recovery was observed in November, but the year concluded with a significant decline in December. Top Contributors Goosehead Insurance, Inc., Class A CBRE Group, Inc., Class A Guidewire Software, Inc. Atlassian Corp., Class A Veeva Systems, Inc., Class A Top Detractors Edwards Lifesciences Corp. Microchip Technology, Inc. Mettler-Toledo International, Inc. WNS Holdings, Ltd. Entegris, Inc. | |||
| 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] | Date Institutional Plus Shares Footnote Reference 1 Russell 2500 Index Russell Midcap Growth Index 12/31/14 $100,000,000 $100,000,000 $100,000,000 3/31/15 $102,090,137 $105,168,412 $105,377,989 6/30/15 $106,270,411 $104,808,744 $104,176,040 9/30/15 $97,779,229 $94,016,866 $95,852,849 12/31/15 $100,789,386 $97,098,350 $99,800,149 3/31/16 $100,587,133 $97,479,890 $100,377,918 6/30/16 $103,620,927 $100,962,356 $101,946,419 9/30/16 $108,003,074 $107,588,277 $106,627,770 12/31/16 $105,061,698 $114,177,137 $107,114,138 3/31/17 $112,146,783 $118,465,819 $114,498,691 6/30/17 $121,998,426 $120,994,435 $119,324,957 9/30/17 $129,016,035 $126,731,512 $125,628,798 12/31/17 $137,861,394 $133,370,799 $134,179,307 3/31/18 $145,103,009 $133,052,018 $137,097,065 6/30/18 $150,314,265 $140,647,646 $141,425,811 9/30/18 $161,481,241 $147,253,032 $152,138,219 12/31/18 $137,603,339 $120,031,167 $127,805,140 3/31/19 $163,920,153 $139,017,169 $152,881,789 6/30/19 $180,788,111 $143,133,308 $161,140,194 9/30/19 $182,397,916 $141,297,905 $160,054,888 12/31/19 $192,833,442 $153,359,134 $173,137,239 3/31/20 $164,236,758 $107,778,014 $138,440,592 6/30/20 $208,155,616 $136,409,026 $180,333,970 9/30/20 $217,899,672 $144,433,279 $197,237,743 12/31/20 $251,502,680 $184,020,875 $234,750,683 3/31/21 $248,103,038 $204,132,117 $233,423,756 6/30/21 $269,209,149 $215,241,318 $259,268,696 9/30/21 $271,121,447 $209,469,124 $257,298,408 12/31/21 $282,395,878 $217,479,404 $264,630,251 3/31/22 $244,220,542 $204,828,732 $231,338,909 6/30/22 $196,682,814 $170,046,720 $182,591,721 9/30/22 $183,619,011 $165,255,474 $181,399,433 12/31/22 $196,392,507 $177,530,134 $193,918,553 3/31/23 $213,375,451 $183,548,932 $211,634,755 6/30/23 $226,221,524 $193,139,262 $224,828,682 9/30/23 $213,085,145 $183,903,193 $213,083,677 12/31/23 $241,607,781 $208,461,688 $244,079,145 3/31/24 $260,042,259 $222,886,158 $267,258,249 6/30/24 $243,494,775 $213,358,648 $258,670,326 9/30/24 $269,477,228 $232,024,654 $275,590,769 12/31/24 $268,969,191 $233,466,731 $298,028,197 | |||
| Average Annual Return [Table Text Block] | One Year Five Year Ten Year Institutional Plus Shares Footnote Reference 1 11.32% 6.88% 10.40% Russell 2500 Index 12.00% 8.77% 8.85% Russell Midcap Growth Index 22.10% 11.47% 11.54% | |||
| Performance Inception Date | Dec. 03, 2021 | |||
| 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. | |||
| Performance Table Market Index Changed [Text Block] | Effective June 1, 2024, the Fund changed its primary benchmark index from the Russell Midcap Growth Index to the Russell 2500 Index due to regulatory requirements. The Fund retained the Russell Midcap Growth Index as a secondary benchmark because the Russell Midcap Growth Index more closely reflects the market sectors in which the Fund invests. | |||
| Prior Market Index Comparison [Text Block] | The Fund retained the Russell Midcap Growth Index as a secondary benchmark | |||
| AssetsNet | $ 407,379,623 | |||
| Holdings Count | Holding | 39 | |||
| Advisory Fees Paid, Amount | $ 1,608,046 | |||
| InvestmentCompanyPortfolioTurnover | 25% | |||
| Additional Fund Statistics [Text Block] | Fund Statistics Total Net Assets $407,379,623 # of Portfolio Holdings 39 Portfolio Turnover Rate 25% Investment Advisory Fees (Net of fees waived) $1,608,046 | |||
| Holdings [Text Block] | Sector Weightings (% total investments)* Value Value Industrials 25.0% Health Care 19.6% Information Technology 18.5% Financials 14.4% Materials 9.9% Real Estate 8.3% Consumer Discretionary 4.3% * excluding cash equivalents | |||
| Largest Holdings [Text Block] | Top Ten Holdings (% total investments)* Vulcan Materials Co. 5.21% Ecolab, Inc. 4.69% Veeva Systems, Inc., Class A 4.55% CoStar Group, Inc. 4.20% CBRE Group, Inc., Class A 4.09% Veralto Corp. 4.02% Markel Group, Inc. 3.97% Bio-Techne Corp. 3.79% HEICO Corp., Class A 3.79% Old Dominion Freight Line, Inc. 3.78% * excluding cash equivalents | |||
| C000115949 | ||||
| Shareholder Report [Line Items] | ||||
| Fund Name | DF Dent Small Cap Growth Fund | |||
| Class Name | Investor | |||
| Trading Symbol | DFDSX | |||
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Small Cap Growth Fund for the period of July 1, 2024, to December 31, 2024. | |||
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report | |||
| Additional Information [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Small Cap Growth Fund for the period of July 1, 2024, to December 31, 2024. You can find additional information about the Fund at https://dfdent.com/literature/. You can also request this information by contacting us at (866) 233-3368. | |||
| Additional Information Phone Number | (866) 233-3368 | |||
| Additional Information Website | https://dfdent.com/literature/ | |||
| Expenses [Text Block] | What were the Fund's costs for the last six months? (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 Investor Shares $55 1.04% | |||
| Expenses Paid, Amount | $ 55 | |||
| Expense Ratio, Percent | 1.04% | |||
| Factors Affecting Performance [Text Block] | How did the Fund perform in the last six months? During the period from July 2024 to December 2024, the DF Dent Small Cap Growth Fund outperformed both its benchmarks, the Russell 2000 Index and the Russell 2000 Growth Index. The outperformance relative to the Russell 2000 Index was driven primarily by sector allocation. Notably, being underweight the benchmark in the Energy sector and overweight the benchmark in the Information Technology sector contributed to the Fund’s performance, as did stock selection in the Financials and Materials sectors. Stock selection in the Consumer Staples, Industrials, and Information Technology sectors detracted the most from performance. The outperformance relative to the Russell 2000 Growth Index was also driven primarily by sector allocation. Notably, being underweight the benchmark in the Energy sector and overweight the benchmark in the Financials sector contributed to the Fund’s performance, as did stock selection in the Financials and Materials sectors. Stock selection in the Consumer Discretionary, Information Technology, and Industrials sectors detracted the most from performance. Financials, Industrials, and Information Technology were the top performing sectors in the Russell 2000 Index. All the benchmark’s sectors, other than Energy, contributed to performance with the Materials sector contributing the least. Financials, Industrials, Information Technology, and Consumer Discretionary were the top performing sectors in the Russell 2000 Growth Index. All the benchmark’s sectors, other than Energy, contributed to performance with the Utilities sector contributing the least. Top Contributors Goosehead Insurance, Inc., Class A Perimeter Solutions, Inc. Guidewire Software, Inc. Hamilton Lane, Inc., Class A CSW Industrials, Inc. Top Detractors Medpace Holdings, Inc. RxSight, Inc. Charles River Laboratories International, Inc. Novanta, Inc. Utz Brands, Inc. | |||
| 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] | Date Investor Shares Russell 2000 ® Russell 2000 Growth Index 12/31/14 $10,000 $10,000 $10,000 03/31/15 $10,268 $10,432 $10,663 06/30/15 $10,901 $10,475 $10,874 09/30/15 $9,679 $9,227 $9,453 12/31/15 $9,584 $9,559 $9,862 03/31/16 $9,512 $9,413 $9,400 06/30/16 $10,349 $9,770 $9,705 09/30/16 $11,034 $10,654 $10,600 12/31/16 $11,160 $11,595 $10,978 03/31/17 $11,394 $11,881 $11,565 06/30/17 $11,971 $12,174 $12,073 09/30/17 $12,484 $12,864 $12,823 12/31/17 $12,899 $13,294 $13,411 03/31/18 $13,322 $13,283 $13,720 06/30/18 $14,385 $14,312 $14,712 09/30/18 $15,646 $14,824 $15,525 12/31/18 $12,703 $11,830 $12,163 03/31/19 $14,870 $13,555 $14,248 06/30/19 $16,543 $13,839 $14,640 09/30/19 $15,982 $13,507 $14,029 12/31/19 $17,319 $14,849 $15,628 03/31/20 $13,804 $10,303 $11,601 06/30/20 $18,045 $12,922 $15,149 09/30/20 $19,184 $13,559 $16,234 12/31/20 $23,325 $17,813 $21,040 03/31/21 $23,356 $20,075 $22,066 06/30/21 $25,010 $20,937 $22,930 09/30/21 $25,261 $20,024 $21,634 12/31/21 $26,727 $20,453 $21,636 03/31/22 $22,486 $18,914 $18,904 06/30/22 $18,677 $15,661 $15,264 09/30/22 $17,886 $15,319 $15,301 12/31/22 $18,626 $16,273 $15,933 03/31/23 $20,238 $16,718 $16,901 06/30/23 $21,316 $17,589 $18,093 09/30/23 $20,638 $16,687 $16,769 12/31/23 $22,774 $19,028 $18,906 03/31/24 $24,663 $20,013 $20,340 06/30/24 $22,887 $19,357 $19,746 09/30/24 $25,638 $21,152 $21,407 12/31/24 $25,258 $21,223 $21,772 | |||
| Average Annual Return [Table Text Block] | One Year Five Year Ten Year Investor Shares 10.91% 7.84% 9.71% Russell 2000 ® 11.54% 7.40% 7.82% Russell 2000 Growth Index 15.15% 6.86% 8.09% | |||
| 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. | |||
| Performance Table Market Index Changed [Text Block] | Effective June 1, 2024, the Fund changed its primary benchmark index from the Russell 2000 Growth Index to the Russell 2000 Index due to regulatory requirements. The Fund retained the Russell 2000 Growth Index as a secondary benchmark because the Russell 2000 Growth Index more closely reflects the market sectors in which the Fund invests. | |||
| Prior Market Index Comparison [Text Block] | The Fund retained the Russell 2000 Growth Index as a secondary benchmark | |||
| Updated Performance Information Location [Text Block] | ||||
| AssetsNet | $ 217,513,780 | |||
| Holdings Count | Holding | 49 | |||
| Advisory Fees Paid, Amount | $ 869,720 | |||
| InvestmentCompanyPortfolioTurnover | 18% | |||
| Additional Fund Statistics [Text Block] | Fund Statistics Total Net Assets $217,513,780 # of Portfolio Holdings 49 Portfolio Turnover Rate 18% Investment Advisory Fees (Net of fees waived) $869,720 | |||
| Holdings [Text Block] | Sector Weightings (% total investments)* Value Value Industrials 29.6% Information Technology 23.2% Health Care 15.9% Financials 15.2% Consumer Discretionary 7.8% Materials 5.3% Consumer Staples 3.0% * excluding cash equivalents | |||
| Largest Holdings [Text Block] | Top Ten Holdings (% total investments)* Core & Main, Inc., Class A 3.68% HEICO Corp., Class A 3.47% Hamilton Lane, Inc., Class A 3.32% Bio-Techne Corp. 3.30% Goosehead Insurance, Inc., Class A 3.28% Murphy USA, Inc. 3.20% Kinsale Capital Group, Inc. 3.19% Guidewire Software, Inc. 3.11% Appfolio, Inc. 3.10% Repligen Corp. 2.91% * excluding cash equivalents | |||
| C000195206 | ||||
| Shareholder Report [Line Items] | ||||
| Fund Name | DF Dent Small Cap Growth Fund | |||
| Class Name | Institutional | |||
| Trading Symbol | DFSGX | |||
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Small Cap Growth Fund for the period of July 1, 2024, to December 31, 2024. | |||
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report | |||
| Additional Information [Text Block] | This semi-annual shareholder report contains important information about the DF Dent Small Cap Growth Fund for the period of July 1, 2024, to December 31, 2024. You can find additional information about the Fund at https://dfdent.com/literature/. You can also request this information by contacting us at (866) 233-3368. | |||
| Additional Information Phone Number | (866) 233-3368 | |||
| Additional Information Website | https://dfdent.com/literature/ | |||
| Expenses [Text Block] | What were the Fund's costs for the last six months? (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 Shares $50 0.94% | |||
| Expenses Paid, Amount | $ 50 | |||
| Expense Ratio, Percent | 0.94% | |||
| Factors Affecting Performance [Text Block] | How did the Fund perform in the last six months? During the period from July 2024 to December 2024, the DF Dent Small Cap Growth Fund outperformed both its benchmarks, the Russell 2000 Index and the Russell 2000 Growth Index. The outperformance relative to the Russell 2000 Index was driven primarily by sector allocation. Notably, being underweight the benchmark in the Energy sector and overweight the benchmark in the Information Technology sector contributed to the Fund’s performance, as did stock selection in the Financials and Materials sectors. Stock selection in the Consumer Staples, Industrials, and Information Technology sectors detracted the most from performance. The outperformance relative to the Russell 2000 Growth Index was also driven primarily by sector allocation. Notably, being underweight the benchmark in the Energy sector and overweight the benchmark in the Financials sector contributed to the Fund’s performance, as did stock selection in the Financials and Materials sectors. Stock selection in the Consumer Discretionary, Information Technology, and Industrials sectors detracted the most from performance. Financials, Industrials, and Information Technology were the top performing sectors in the Russell 2000 Index. All the benchmark’s sectors, other than Energy, contributed to performance with the Materials sector contributing the least. Financials, Industrials, Information Technology, and Consumer Discretionary were the top performing sectors in the Russell 2000 Growth Index. All the benchmark’s sectors, other than Energy, contributed to performance with the Utilities sector contributing the least. Top Contributors Goosehead Insurance, Inc., Class A Perimeter Solutions, Inc. Guidewire Software, Inc. Hamilton Lane, Inc., Class A CSW Industrials, Inc. Top Detractors Medpace Holdings, Inc. RxSight, Inc. Charles River Laboratories International, Inc. Novanta, Inc. Utz Brands, Inc. | |||
| 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] | Date Institutional Shares Footnote Reference 1 Russell 2000 ® Russell 2000 Growth Index 12/31/14 $500,000 $500,000 $500,000 3/31/15 $513,381 $521,577 $533,149 6/30/15 $545,049 $523,772 $543,689 9/30/15 $483,943 $461,350 $472,674 12/31/15 $479,191 $477,930 $493,092 3/31/16 $475,588 $470,672 $470,001 6/30/16 $517,472 $488,519 $485,234 9/30/16 $551,700 $532,710 $529,979 12/31/16 $558,005 $579,767 $548,900 3/31/17 $569,715 $594,063 $578,260 6/30/17 $598,538 $608,699 $603,639 9/30/17 $624,209 $643,203 $641,175 12/31/17 $644,926 $664,687 $670,573 3/31/18 $666,544 $664,127 $685,992 6/30/18 $719,237 $715,622 $735,608 9/30/18 $783,189 $741,215 $776,237 12/31/18 $635,580 $591,478 $608,157 3/31/19 $744,412 $677,740 $712,424 6/30/19 $828,576 $691,939 $732,002 9/30/19 $800,521 $675,327 $701,455 12/31/19 $867,835 $742,453 $781,381 3/31/20 $691,618 $515,153 $580,059 6/30/20 $904,159 $646,097 $757,465 9/30/20 $961,589 $677,963 $811,684 12/31/20 $1,169,627 $890,653 $1,051,991 3/31/21 $1,171,633 $1,003,757 $1,103,278 6/30/21 $1,254,855 $1,046,844 $1,146,499 9/30/21 $1,267,389 $1,001,198 $1,081,692 12/31/21 $1,341,679 $1,022,638 $1,081,813 3/31/22 $1,128,673 $945,676 $945,208 6/30/22 $937,738 $783,066 $763,215 9/30/22 $898,216 $765,938 $765,061 12/31/22 $935,685 $813,647 $796,674 3/31/23 $1,016,781 $835,923 $845,054 6/30/23 $1,071,187 $879,435 $904,652 9/30/23 $1,037,311 $834,337 $838,443 12/31/23 $1,145,097 $951,388 $945,321 3/31/24 $1,240,565 $1,000,671 $1,016,994 6/30/24 $1,151,257 $967,872 $987,306 9/30/24 $1,290,352 $1,057,622 $1,070,340 12/31/24 $1,271,874 $1,061,159 $1,088,578 | |||
| Average Annual Return [Table Text Block] | One Year Five Year Ten Year Institutional Shares Footnote Reference 1 11.07% 7.94% 9.79% Russell 2000 ® 11.54% 7.40% 7.82% Russell 2000 Growth Index 15.15% 6.86% 8.09% | |||
| Performance Inception Date | Nov. 20, 2017 | |||
| 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. | |||
| Performance Table Market Index Changed [Text Block] | Effective June 1, 2024, the Fund changed its primary benchmark index from the Russell 2000 Growth Index to the Russell 2000 Index due to regulatory requirements. The Fund retained the Russell 2000 Growth Index as a secondary benchmark because the Russell 2000 Growth Index more closely reflects the market sectors in which the Fund invests. | |||
| Prior Market Index Comparison [Text Block] | The Fund retained the Russell 2000 Growth Index as a secondary benchmark | |||
| AssetsNet | $ 217,513,780 | |||
| Holdings Count | Holding | 49 | |||
| Advisory Fees Paid, Amount | $ 869,720 | |||
| InvestmentCompanyPortfolioTurnover | 18% | |||
| Additional Fund Statistics [Text Block] | Fund Statistics Total Net Assets $217,513,780 # of Portfolio Holdings 49 Portfolio Turnover Rate 18% Investment Advisory Fees (Net of fees waived) $869,720 | |||
| Holdings [Text Block] | Sector Weightings (% total investments)* Value Value Industrials 29.6% Information Technology 23.2% Health Care 15.9% Financials 15.2% Consumer Discretionary 7.8% Materials 5.3% Consumer Staples 3.0% * excluding cash equivalents | |||
| Largest Holdings [Text Block] | Top Ten Holdings (% total investments)* Core & Main, Inc., Class A 3.68% HEICO Corp., Class A 3.47% Hamilton Lane, Inc., Class A 3.32% Bio-Techne Corp. 3.30% Goosehead Insurance, Inc., Class A 3.28% Murphy USA, Inc. 3.20% Kinsale Capital Group, Inc. 3.19% Guidewire Software, Inc. 3.11% Appfolio, Inc. 3.10% Repligen Corp. 2.91% * excluding cash equivalents |
| Shareholder Report, Line Graph (Details) - USD ($) | 6 Months Ended | ||||||||||||||||||||||||||||||||||||||||
| Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | |
| C000012489 | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | DF Dent Premier Growth Fund | ||||||||||||||||||||||||||||||||||||||||
| C000102025 | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Investor | ||||||||||||||||||||||||||||||||||||||||
| S&P 500® Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B11">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 34,254 | $ 33,448 | $ 31,589 | $ 30,291 | $ 27,399 | $ 24,531 | $ 25,361 | $ 23,322 | $ 21,696 | $ 20,170 | $ 21,206 | $ 25,276 | $ 26,494 | $ 23,862 | $ 23,724 | $ 21,856 | $ 20,585 | $ 18,355 | $ 16,850 | $ 13,979 | $ 17,386 | $ 15,940 | $ 15,674 | $ 15,027 | $ 13,223 | $ 15,290 | $ 14,195 | $ 13,724 | $ 13,829 | $ 12,967 | $ 12,411 | $ 12,039 | $ 11,351 | $ 10,933 | $ 10,527 | $ 10,275 | $ 10,138 | $ 9,471 | $ 10,123 | $ 10,095 | $ 10,000 |
| Russell 2500 Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 2500 Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 23,347 | 23,202 | 21,336 | 22,289 | 20,846 | 18,390 | 19,314 | 18,355 | 17,753 | 16,526 | 17,005 | 20,483 | 21,748 | 20,947 | 21,524 | 20,413 | 18,402 | 14,443 | 13,641 | 10,778 | 15,336 | 14,130 | 14,313 | 13,902 | 12,003 | 14,725 | 14,065 | 13,305 | 13,337 | 12,673 | 12,099 | 11,847 | 11,418 | 10,759 | 10,096 | 9,748 | 9,710 | 9,402 | 10,481 | 10,517 | 10,000 |
| Russell 2500 Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 2500 Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 1,167,334 | 1,160,123 | 1,066,793 | 1,114,431 | 1,042,308 | 919,516 | 965,696 | 917,745 | 887,651 | 826,277 | 850,234 | 1,024,144 | 1,087,397 | 1,047,346 | 1,076,207 | 1,020,661 | 920,104 | 722,166 | 682,045 | 538,890 | 766,796 | 706,490 | 715,667 | 695,086 | 600,156 | 736,265 | 703,238 | 665,260 | 666,854 | 633,658 | 604,972 | 592,329 | 570,886 | 537,941 | 504,812 | 487,399 | 485,492 | 470,084 | 524,044 | 525,842 | 500,000 |
| Russell 2500 Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 2500 Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 233,466,731 | 232,024,654 | 213,358,648 | 222,886,158 | 208,461,688 | 183,903,193 | 193,139,262 | 183,548,932 | 177,530,134 | 165,255,474 | 170,046,720 | 204,828,732 | 217,479,404 | 209,469,124 | 215,241,318 | 204,132,117 | 184,020,875 | 144,433,279 | 136,409,026 | 107,778,014 | 153,359,134 | 141,297,905 | 143,133,308 | 139,017,169 | 120,031,167 | 147,253,032 | 140,647,646 | 133,052,018 | 133,370,799 | 126,731,512 | 120,994,435 | 118,465,819 | 114,177,137 | 107,588,277 | 100,962,356 | 97,479,890 | 97,098,350 | 94,016,866 | 104,808,744 | 105,168,412 | 100,000,000 |
| Russell 2000 Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B27">Russell 2000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 21,223 | 21,152 | 19,357 | 20,013 | 19,028 | 16,687 | 17,589 | 16,718 | 16,273 | 15,319 | 15,661 | 18,914 | 20,453 | 20,024 | 20,937 | 20,075 | 17,813 | 13,559 | 12,922 | 10,303 | 14,849 | 13,507 | 13,839 | 13,555 | 11,830 | 14,824 | 14,312 | 13,283 | 13,294 | 12,864 | 12,174 | 11,881 | 11,595 | 10,654 | 9,770 | 9,413 | 9,559 | 9,227 | 10,475 | 10,432 | 10,000 |
| Russell 2000 Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B31">Russell 2000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 1,061,159 | 1,057,622 | 967,872 | 1,000,671 | 951,388 | 834,337 | 879,435 | 835,923 | 813,647 | 765,938 | 783,066 | 945,676 | 1,022,638 | 1,001,198 | 1,046,844 | 1,003,757 | 890,653 | 677,963 | 646,097 | 515,153 | 742,453 | 675,327 | 691,939 | 677,740 | 591,478 | 741,215 | 715,622 | 664,127 | 664,687 | 643,203 | 608,699 | 594,063 | 579,767 | 532,710 | 488,519 | 470,672 | 477,930 | 461,350 | 523,772 | 521,577 | 500,000 |
| Russell Midcap Growth Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell Midcap Growth Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 29,803 | 27,559 | 25,867 | 26,726 | 24,408 | 21,308 | 22,483 | 21,163 | 19,392 | 18,140 | 18,259 | 23,134 | 26,463 | 25,730 | 25,927 | 23,342 | 23,475 | 19,724 | 18,033 | 13,844 | 17,314 | 16,005 | 16,114 | 15,288 | 12,781 | 15,214 | 14,143 | 13,710 | 13,418 | 12,563 | 11,932 | 11,450 | 10,711 | 10,663 | 10,195 | 10,038 | 9,980 | 9,585 | 10,418 | 10,538 | 10,000 |
| Russell Midcap Growth Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell Midcap Growth Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 1,490,141 | 1,377,954 | 1,293,352 | 1,336,291 | 1,220,396 | 1,065,418 | 1,124,143 | 1,058,174 | 969,593 | 906,997 | 912,959 | 1,156,695 | 1,323,151 | 1,286,492 | 1,296,343 | 1,167,119 | 1,173,753 | 986,189 | 901,670 | 692,203 | 865,686 | 800,274 | 805,701 | 764,409 | 639,026 | 760,691 | 707,129 | 685,485 | 670,897 | 628,144 | 596,625 | 572,493 | 535,571 | 533,139 | 509,732 | 501,890 | 499,001 | 479,264 | 520,880 | 526,890 | 500,000 |
| Russell Midcap Growth Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell Midcap Growth Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 298,028,197 | 275,590,769 | 258,670,326 | 267,258,249 | 244,079,145 | 213,083,677 | 224,828,682 | 211,634,755 | 193,918,553 | 181,399,433 | 182,591,721 | 231,338,909 | 264,630,251 | 257,298,408 | 259,268,696 | 233,423,756 | 234,750,683 | 197,237,743 | 180,333,970 | 138,440,592 | 173,137,239 | 160,054,888 | 161,140,194 | 152,881,789 | 127,805,140 | 152,138,219 | 141,425,811 | 137,097,065 | 134,179,307 | 125,628,798 | 119,324,957 | 114,498,691 | 107,114,138 | 106,627,770 | 101,946,419 | 100,377,918 | 99,800,149 | 95,852,849 | 104,176,040 | 105,377,989 | 100,000,000 |
| Russell 2000 Growth Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 2000 Growth Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 21,772 | 21,407 | 19,746 | 20,340 | 18,906 | 16,769 | 18,093 | 16,901 | 15,933 | 15,301 | 15,264 | 18,904 | 21,636 | 21,634 | 22,930 | 22,066 | 21,040 | 16,234 | 15,149 | 11,601 | 15,628 | 14,029 | 14,640 | 14,248 | 12,163 | 15,525 | 14,712 | 13,720 | 13,411 | 12,823 | 12,073 | 11,565 | 10,978 | 10,600 | 9,705 | 9,400 | 9,862 | 9,453 | 10,874 | 10,663 | 10,000 |
| Russell 2000 Growth Index | |||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 2000 Growth Index | ||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 1,088,578 | $ 1,070,340 | $ 987,306 | $ 1,016,994 | $ 945,321 | $ 838,443 | $ 904,652 | $ 845,054 | $ 796,674 | $ 765,061 | $ 763,215 | $ 945,208 | $ 1,081,813 | $ 1,081,692 | $ 1,146,499 | $ 1,103,278 | $ 1,051,991 | $ 811,684 | $ 757,465 | $ 580,059 | $ 781,381 | $ 701,455 | $ 732,002 | $ 712,424 | $ 608,157 | $ 776,237 | $ 735,608 | $ 685,992 | $ 670,573 | $ 641,175 | $ 603,639 | $ 578,260 | $ 548,900 | $ 529,979 | $ 485,234 | $ 470,001 | $ 493,092 | $ 472,674 | $ 543,689 | $ 533,149 | $ 500,000 |
| Shareholder Report, Average Annual Return (Details) | 6 Months Ended | 12 Months Ended | 60 Months Ended | 120 Months Ended |
| Dec. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2024 | |
| C000012489 | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | DF Dent Premier Growth Fund | |||
| C000102025 | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Investor | |||
| Without Sales Load [Member] | C000012489 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 14.66% | 9.06% | 11.90% | |
| Without Sales Load [Member] | C000102025 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.15% | 6.81% | 10.36% | |
| Without Sales Load [Member] | C000195205 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.16% | 6.85% | 10.41% | |
| Without Sales Load [Member] | C000231957 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.32% | 6.88% | 10.40% | |
| Without Sales Load [Member] | C000115949 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 10.91% | 7.84% | 9.71% | |
| Without Sales Load [Member] | C000195206 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.07% | 7.94% | 9.79% | |
| S&P 500® Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B29">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% | |
| Russell 2500 Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Russell 2500 Index | |||
| Average Annual Return, Percent | 12% | 8.77% | 8.85% | |
| Russell 2500 Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Russell 2500 Index | |||
| Average Annual Return, Percent | 12% | 8.77% | 8.85% | |
| Russell 2500 Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Russell 2500 Index | |||
| Average Annual Return, Percent | 12% | 8.77% | 8.85% | |
| Russell 2000 Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B45">Russell 2000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||
| Average Annual Return, Percent | 11.54% | 7.40% | 7.82% | |
| Russell 2000 Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B49">Russell 2000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||
| Average Annual Return, Percent | 11.54% | 7.40% | 7.82% | |
| Russell Midcap Growth Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Russell Midcap Growth Index | |||
| Average Annual Return, Percent | 22.10% | 11.47% | 11.54% | |
| Russell Midcap Growth Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Russell Midcap Growth Index | |||
| Average Annual Return, Percent | 22.10% | 11.47% | 11.54% | |
| Russell Midcap Growth Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Russell Midcap Growth Index | |||
| Average Annual Return, Percent | 22.10% | 11.47% | 11.54% | |
| Russell 2000 Growth Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Russell 2000 Growth Index | |||
| Average Annual Return, Percent | 15.15% | 6.86% | 8.09% | |
| Russell 2000 Growth Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Russell 2000 Growth Index | |||
| Average Annual Return, Percent | 15.15% | 6.86% | 8.09% |
| Shareholder Report, Holdings (Details) | Dec. 31, 2024 |
| C000012489 | Amazon.com, Inc.None_023135106 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.10% |
| C000012489 | Visa, Inc.NoneA_92826C839 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.18% |
| C000012489 | Mastercard, Inc.NoneA_57636Q104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.99% |
| C000012489 | Alphabet, Inc.NoneC_02079K107 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.67% |
| C000012489 | Microsoft Corp.None_594918104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.08% |
| C000012489 | S&P Global, Inc.None_78409V104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.86% |
| C000012489 | HEICO Corp.NoneA_422806208 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.59% |
| C000012489 | TransDigm Group, Inc.None_893641100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.41% |
| C000012489 | Guidewire Software, Inc.None_40171V100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000012489 | Danaher Corp.None_235851102 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.16% |
| C000012489 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 21.50% |
| C000012489 | Industrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 20.10% |
| C000012489 | Financials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 18.50% |
| C000012489 | Health Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 17.90% |
| C000012489 | Materials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.10% |
| C000012489 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.10% |
| C000012489 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000012489 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.10% |
| C000102025 | HEICO Corp.NoneA_422806208 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.79% |
| C000102025 | Vulcan Materials Co.None_929160109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.21% |
| C000102025 | Ecolab, Inc.None_278865100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.69% |
| C000102025 | Veeva Systems, Inc.NoneA_922475108 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.55% |
| C000102025 | CoStar Group, Inc.None_22160N109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.20% |
| C000102025 | CBRE Group, Inc.NoneA_12504L109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.09% |
| C000102025 | Veralto Corp.None_92338C103 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.02% |
| C000102025 | Markel Group, Inc.None_570535104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.97% |
| C000102025 | Bio-Techne Corp.None_09073M104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.79% |
| C000102025 | Old Dominion Freight Line, Inc.None_679580100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.78% |
| C000102025 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 18.50% |
| C000102025 | Industrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25% |
| C000102025 | Financials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 14.40% |
| C000102025 | Health Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 19.60% |
| C000102025 | Materials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.90% |
| C000102025 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.30% |
| C000102025 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.30% |
| C000195205 | HEICO Corp.NoneA_422806208 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.79% |
| C000195205 | Vulcan Materials Co.None_929160109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.21% |
| C000195205 | Ecolab, Inc.None_278865100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.69% |
| C000195205 | Veeva Systems, Inc.NoneA_922475108 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.55% |
| C000195205 | CoStar Group, Inc.None_22160N109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.20% |
| C000195205 | CBRE Group, Inc.NoneA_12504L109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.09% |
| C000195205 | Veralto Corp.None_92338C103 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.02% |
| C000195205 | Markel Group, Inc.None_570535104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.97% |
| C000195205 | Bio-Techne Corp.None_09073M104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.79% |
| C000195205 | Old Dominion Freight Line, Inc.None_679580100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.78% |
| C000195205 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 18.50% |
| C000195205 | Industrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25% |
| C000195205 | Financials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 14.40% |
| C000195205 | Health Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 19.60% |
| C000195205 | Materials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.90% |
| C000195205 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.30% |
| C000195205 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.30% |
| C000231957 | HEICO Corp.NoneA_422806208 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.79% |
| C000231957 | Vulcan Materials Co.None_929160109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.21% |
| C000231957 | Ecolab, Inc.None_278865100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.69% |
| C000231957 | Veeva Systems, Inc.NoneA_922475108 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.55% |
| C000231957 | CoStar Group, Inc.None_22160N109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.20% |
| C000231957 | CBRE Group, Inc.NoneA_12504L109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.09% |
| C000231957 | Veralto Corp.None_92338C103 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.02% |
| C000231957 | Markel Group, Inc.None_570535104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.97% |
| C000231957 | Bio-Techne Corp.None_09073M104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.79% |
| C000231957 | Old Dominion Freight Line, Inc.None_679580100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.78% |
| C000231957 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 18.50% |
| C000231957 | Industrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25% |
| C000231957 | Financials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 14.40% |
| C000231957 | Health Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 19.60% |
| C000231957 | Materials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.90% |
| C000231957 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.30% |
| C000231957 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.30% |
| C000115949 | HEICO Corp.NoneA_422806208 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.47% |
| C000115949 | Guidewire Software, Inc.None_40171V100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.11% |
| C000115949 | Bio-Techne Corp.None_09073M104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.30% |
| C000115949 | Core & Main, Inc.NoneA_21874C102 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.68% |
| C000115949 | Hamilton Lane, Inc.NoneA_407497106 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.32% |
| C000115949 | Goosehead Insurance, Inc.NoneA_38267D109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.28% |
| C000115949 | Murphy USA, Inc.None_626755102 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000115949 | Kinsale Capital Group, Inc.None_49714P108 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.19% |
| C000115949 | Appfolio, Inc.None_03783C100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.10% |
| C000115949 | Repligen Corp.None_759916109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.91% |
| C000115949 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 23.20% |
| C000115949 | Industrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 29.60% |
| C000115949 | Financials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 15.20% |
| C000115949 | Health Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 15.90% |
| C000115949 | Materials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.30% |
| C000115949 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.80% |
| C000115949 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| C000195206 | HEICO Corp.NoneA_422806208 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.47% |
| C000195206 | Guidewire Software, Inc.None_40171V100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.11% |
| C000195206 | Bio-Techne Corp.None_09073M104 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.30% |
| C000195206 | Core & Main, Inc.NoneA_21874C102 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.68% |
| C000195206 | Hamilton Lane, Inc.NoneA_407497106 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.32% |
| C000195206 | Goosehead Insurance, Inc.NoneA_38267D109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.28% |
| C000195206 | Murphy USA, Inc.None_626755102 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000195206 | Kinsale Capital Group, Inc.None_49714P108 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.19% |
| C000195206 | Appfolio, Inc.None_03783C100 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.10% |
| C000195206 | Repligen Corp.None_759916109 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.91% |
| C000195206 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 23.20% |
| C000195206 | Industrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 29.60% |
| C000195206 | Financials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 15.20% |
| C000195206 | Health Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 15.90% |
| C000195206 | Materials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.30% |
| C000195206 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.80% |
| C000195206 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
