underlying or referenced taxonomies remain unaltered; the entity extending
the taxonomy simply provides its own views of the taxonomy information in
order to personalize the data; while the referenced taxonomy elements remain
the same, the labels, presentation hierarchy and calculation summations are
extended to meet an entities needs.
example, an entity may wish to add an element not found in the referenced
taxonomy that is unique to that entity.
Or, they may wish to extend the label of a referenced element to meet
their own particular financial reporting needs.
powerful feature ensures user defined flexibility while maintaining