ITALY JAPAN CANADA CHILE GERMANY HONG KONG SINGAPORE UNITED KINGDOM UNITED STATES BRAZIL AUSTRALIA FRANCE IRELAND MEXICO Consulting And Information Technology Services [Member] Home Building Sector [Member] Non U S Real Estate Operating Companies [Member] Non U S Real Estate Investment Trusts [Member] Non U S Homebuilder [Member] Non U S Real Estate Consulting Management [Member] Banks And Thrifts [Member] Insurance And Reinsurance [Member] U S Real Estate Operating Companies [Member] Industrial Services [Member] Hospitality [Member] Industrial Distribution [Member] Forest Products And Paper [Member] Consulting Management [Member] Mortgage Finance [Member] U S Real Estate Investment Trusts [Member] U S Homebuilder [Member] Energy Refining And Marketing [Member] Media [Member] Materials Diversified Chemicals [Member] Commercial Services [Member] Insurance Sector [Member] Oil And Gas Production And Services [Member] Building Products [Member] Metals And Mining [Member] Diversified Holding Companies [Member] Transportation And Logistics [Member] Capital Equipment [Member] Banks [Member] Automotive Sector [Member] Industrial Equipment [Member] Metals Manufacturing [Member] Financial Services Sector [Member] Home Building [Member] Healthcare Sector [Member] Short-Term Investments [Member] Other Assets less Liabilities [Member] Purchased Options [Member] Others [Member] C000085634 [Member] Investor Class C000003885 [Member] Institutional Class C000199334 [Member] Z Class C000199335 [Member] C000003886 [Member] C000085635 [Member] C000085636 [Member] C000003887 [Member] C000199336 [Member] C000226241 [Member] C000226242 [Member] Investment Type [Axis] Net Assets Investment Company Portfolio Turnover No Trading Symbol Flag