<?xml version='1.0' encoding='UTF-8'?>
<FilingSummary>
  <Version>3.6.0.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>157</ContextCount>
  <ElementCount>92</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>129</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>2</UnitCount>
  <MyReports>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000 - Document - Document and Entity Information {Elements}</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory></MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>0001 - Document - Risk/Return Summary {Unlabeled} - (Dunham Floating Rate Bond Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/tRiskReturnSummary1</Role>
      <ShortName>Risk/Return Summary- (Dunham Floating Rate Bond Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>0008 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Floating Rate Bond Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData1</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Floating Rate Bond Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>0009 - Document - Risk/Return Summary {Unlabeled} - (Dunham Corporate/Government Bond Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary2</Role>
      <ShortName>Risk/Return Summary- (Dunham Corporate/Government Bond Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>0016 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Corporate/Government Bond Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData2</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Corporate/Government Bond Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>0017 - Document - Risk/Return Summary {Unlabeled} - (Dunham Monthly Distribution Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary3</Role>
      <ShortName>Risk/Return Summary- (Dunham Monthly Distribution Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>0024 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Monthly Distribution Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData3</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Monthly Distribution Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>0025 - Document - Risk/Return Summary {Unlabeled} - (Dunham Dynamic Macro Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary4</Role>
      <ShortName>Risk/Return Summary- (Dunham Dynamic Macro Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>0032 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Dynamic Macro Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData4</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Dynamic Macro Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>0033 - Document - Risk/Return Summary {Unlabeled} - (Dunham High-Yield Bond Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary5</Role>
      <ShortName>Risk/Return Summary- (Dunham High-Yield Bond Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>0040 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham High-Yield Bond Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData5</Role>
      <ShortName>Risk/Return Detail Data- (Dunham High-Yield Bond Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>0041 - Document - Risk/Return Summary {Unlabeled} - (Dunham Alternative Dividend Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary6</Role>
      <ShortName>Risk/Return Summary- (Dunham Alternative Dividend Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>0048 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Alternative Dividend Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData6</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Alternative Dividend Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>0049 - Document - Risk/Return Summary {Unlabeled} - (Dunham International Opportunity Bond Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary7</Role>
      <ShortName>Risk/Return Summary- (Dunham International Opportunity Bond Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>0056 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham International Opportunity Bond Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData7</Role>
      <ShortName>Risk/Return Detail Data- (Dunham International Opportunity Bond Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>0057 - Document - Risk/Return Summary {Unlabeled} - (Dunham Appreciation &amp; Income Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary8</Role>
      <ShortName>Risk/Return Summary- (Dunham Appreciation &amp; Income Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>0064 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Appreciation &amp; Income Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData8</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Appreciation &amp; Income Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>0065 - Document - Risk/Return Summary {Unlabeled} - (Dunham Large Cap Value Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary9</Role>
      <ShortName>Risk/Return Summary- (Dunham Large Cap Value Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>0072 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Large Cap Value Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData9</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Large Cap Value Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>0073 - Document - Risk/Return Summary {Unlabeled} - (Dunham Focused Large Cap Growth Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary10</Role>
      <ShortName>Risk/Return Summary- (Dunham Focused Large Cap Growth Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>0080 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Focused Large Cap Growth Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData10</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Focused Large Cap Growth Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>0081 - Document - Risk/Return Summary {Unlabeled} - (Dunham International Stock Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary11</Role>
      <ShortName>Risk/Return Summary- (Dunham International Stock Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>0088 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham International Stock Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData11</Role>
      <ShortName>Risk/Return Detail Data- (Dunham International Stock Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>0089 - Document - Risk/Return Summary {Unlabeled} - (Dunham Real Estate Stock Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary12</Role>
      <ShortName>Risk/Return Summary- (Dunham Real Estate Stock Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>0096 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Real Estate Stock Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData12</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Real Estate Stock Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>0097 - Document - Risk/Return Summary {Unlabeled} - (Dunham Small Cap Value Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary13</Role>
      <ShortName>Risk/Return Summary- (Dunham Small Cap Value Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>0104 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Small Cap Value Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData13</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Small Cap Value Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>0105 - Document - Risk/Return Summary {Unlabeled} - (Dunham Emerging Markets Stock Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary14</Role>
      <ShortName>Risk/Return Summary- (Dunham Emerging Markets Stock Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>0112 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Emerging Markets Stock Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData14</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Emerging Markets Stock Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>0113 - Document - Risk/Return Summary {Unlabeled} - (Dunham Small Cap Growth Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnSummary15</Role>
      <ShortName>Risk/Return Summary- (Dunham Small Cap Growth Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>0120 - Disclosure - Risk/Return Detail Data {Elements} - (Dunham Small Cap Growth Fund)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.dunham.com/role/RiskReturnDetailData15</Role>
      <ShortName>Risk/Return Detail Data- (Dunham Small Cap Growth Fund)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="cik0001420040-20170228.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>040000 - Disclosure - Risk/Return Detail Data {Elements}</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/rr/role/RiskReturnDetailData</Role>
      <ShortName>Risk/Return Detail Data</ShortName>
      <MenuCategory></MenuCategory>
      <Position>32</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>cik0001420040-20170228.xml</File>
    <File>cik0001420040-20170228.xsd</File>
    <File>cik0001420040-20170228_cal.xml</File>
    <File>cik0001420040-20170228_def.xml</File>
    <File>cik0001420040-20170228_lab.xml</File>
    <File>cik0001420040-20170228_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>BarChart1.png</File>
    <File>BarChart2.png</File>
    <File>BarChart3.png</File>
    <File>BarChart4.png</File>
    <File>BarChart5.png</File>
    <File>BarChart6.png</File>
    <File>BarChart7.png</File>
    <File>BarChart8.png</File>
    <File>BarChart9.png</File>
    <File>BarChart10.png</File>
    <File>BarChart11.png</File>
    <File>BarChart12.png</File>
    <File>BarChart13.png</File>
    <File>BarChart14.png</File>
  </SupplementalFiles>
  <BaseTaxonomies/>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
