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Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Paragraph 9 -Chapter V -Subsection II -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. 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The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.2(a),(b),(c),(d)) -URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section 45 -Paragraph 3 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=6488370&loc=d3e13550-115849 false2Audit, legal and other professional fees20false 5bmnm_DirectReitOperatingExpensesbmnm_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse9876798767USD$falsefalsefalse2truefalsefalse136843136843USD$falsefalsefalse3truefalsefalse233672233672USD$falsefalsefalse4truefalsefalse272378272378USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDirect real estate income trust operating expensesNo definition available.false2Direct REIT operating expenses21false 5us-gaap_OtherGeneralAndAdministrativeExpenseus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse177989177989USD$falsefalsefalse2truefalsefalse170991170991USD$falsefalsefalse3truefalsefalse381628381628USD$falsefalsefalse4truefalsefalse344339344339USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe sum of expenses not otherwise specified in the taxonomy for managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 false2Other administrative22false 5us-gaap_SellingGeneralAndAdministrativeExpenseus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse12875601287560USD$falsefalsefalse2truefalsefalse11411261141126USD$falsefalsefalse3truefalsefalse56242425624242USD$falsefalsefalse4truefalsefalse24372902437290USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. 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