Investment Strategy - Institutional Realty Shares	Dec. 31, 2025
Prospectus [Line Items]
Strategy [Heading]	<span style="color:#000000;font-family:Times New Roman;font-size:10.02pt;font-weight:bold;text-transform:uppercase;">Principal Investment Strategies</span>
Strategy Narrative [Text Block]	The Advisor adheres to a bottom-up, relative value investment process when selecting publicly traded real estate securities. To guide the portfolio construction process, the Advisor utilizes a proprietary valuation model that quantifies relative valuation of real estate securities based on price-to-net asset value (“NAV”), cash flow multiple/growth ratios and a dividend discount model (“DDM”). Analysts incorporate both quantitative and qualitative analysis in their NAV, cash flow, growth and DDM estimates. The company research process includes an evaluation of the commercial real estate supply and demand dynamics, management, strategy, property quality, financial strength and corporate structure. Judgments with respect to risk control, geographic and property sector diversification, liquidity and other factors are considered along with the models’ output and drive the portfolio managers’ investment decisions. The Fund will not seek to achieve specific environmental, social and governance (“ESG”) outcomes through its portfolio of investments, nor will it pursue an overall impact or sustainable investment strategy. However, the Advisor may incorporate consideration of relevant ESG factors into its investment decision-making.Under normal market conditions, the Fund invests at least 80%, and normally substantially all, of its total assets in common stocks and other equity securities issued by real estate companies. Real estate equity securities include common stocks, preferred stocks and other equity securities issued by real estate companies, including real estate investment trusts (“REITs”) and similar REIT-like entities. A real estate company is one that (i) derives at least 50% of its revenue from the ownership, construction, financing, management or sale of commercial, industrial or residential real estate and land; or (ii) has at least 50% of its assets invested in such real estate. REITs are companies that own interests in real estate or in real estate related loans or other interests, and their revenue primarily consists of rent derived from owned, income producing real estate properties and capital gains from the sale of such properties. The Fund may invest, without limit, in shares of REITs. A REIT in the U.S. is generally not taxed on income distributed to shareholders so long as it meets certain tax related requirements, including the requirement that it distribute substantially all of its taxable income to such shareholders (other than net capital gains for each taxable year). Foreign REITs and REIT-like entities are organized outside of the U.S. and have operations and receive tax treatment in their respective countries similar to that of U.S. REITs. The Fund retains the ability to invest in real estate companies of any market capitalization. The Fund may invest up to 20% of its total assets in securities of foreign issuers (including emerging market issuers) which meet the same criteria for investment as domestic companies, including investments in such companies in the form of American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and European Depositary Receipts (“EDRs”).
Strategy Portfolio Concentration [Text]	<span style="color:#000000;font-family:Times New Roman;font-size:11.02pt;">Under normal market conditions, the Fund invests at least 80%, and normally substantially all, of its total assets in common stocks and other equity securities issued by real estate companies.</span>

Investment Strategy - Institutional Realty Shares

Dec. 31, 2025

<span style="color:#000000;font-family:Times New Roman;font-size:10.02pt;font-weight:bold;text-transform:uppercase;">Principal Investment Strategies</span>

Strategy Narrative [Text Block]

The Advisor adheres to a bottom-up, relative value investment process when selecting publicly traded real estate securities. To guide the portfolio construction process, the Advisor utilizes a proprietary valuation model that quantifies relative valuation of real estate securities based on price-to-net asset value (“NAV”), cash flow multiple/growth ratios and a dividend discount model (“DDM”). Analysts incorporate both quantitative and qualitative analysis in their NAV, cash flow, growth and DDM estimates. The company research process includes an evaluation of the commercial real estate supply and demand dynamics, management, strategy, property quality, financial strength and corporate structure. Judgments with respect to risk control, geographic and property sector diversification, liquidity and other factors are considered along with the models’ output and drive the portfolio managers’ investment decisions. The Fund will not seek to achieve specific environmental, social and governance (“ESG”) outcomes through its portfolio of investments, nor will it pursue an overall impact or sustainable investment strategy. However, the Advisor may incorporate consideration of relevant ESG factors into its investment decision-making.Under normal market conditions, the Fund invests at least 80%, and normally substantially all, of its total assets in common stocks and other equity securities issued by real estate companies. Real estate equity securities include common stocks, preferred stocks and other equity securities issued by real estate companies, including real estate investment trusts (“REITs”) and similar REIT-like entities. A real estate company is one that (i) derives at least 50% of its revenue from the ownership, construction, financing, management or sale of commercial, industrial or residential real estate and land; or (ii) has at least 50% of its assets invested in such real estate. REITs are companies that own interests in real estate or in real estate related loans or other interests, and their revenue primarily consists of rent derived from owned, income producing real estate properties and capital gains from the sale of such properties. The Fund may invest, without limit, in shares of REITs. A REIT in the U.S. is generally not taxed on income distributed to shareholders so long as it meets certain tax related requirements, including the requirement that it distribute substantially all of its taxable income to such shareholders (other than net capital gains for each taxable year). Foreign REITs and REIT-like entities are organized outside of the U.S. and have operations and receive tax treatment in their respective countries similar to that of U.S. REITs. The Fund retains the ability to invest in real estate companies of any market capitalization. The Fund may invest up to 20% of its total assets in securities of foreign issuers (including emerging market issuers) which meet the same criteria for investment as domestic companies, including investments in such companies in the form of American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and European Depositary Receipts (“EDRs”).

Strategy Portfolio Concentration [Text]

<span style="color:#000000;font-family:Times New Roman;font-size:11.02pt;">Under normal market conditions, the Fund invests at least 80%, and normally substantially all, of its total assets in common stocks and other equity securities issued by real estate companies.</span>