nonnum:domainItemType

<complexType name="domainItemType" id="domainItemType">
  <annotation>
    <documentation xml:lang="en">The domain item type indicates that an element is a domain or domain member. Domain item types may or may not have attribute abstract="true".</documentation>
  </annotation>
  <simpleContent>
    <restriction base="xbrli:stringItemType">
      <length fixed="true" value="0"/>
    </restriction>
  </simpleContent>
</complexType>