- Target audience
- Which of "segment" or "scenario" should be used as the dimension container?
- Should hypercubes be open or closed?
- Should dimension defaults be usable?
- Should a taxonomy use multiple hypercube elements, or re-use a single hypercube element in different extended link roles?
- Should presentation relationships be provided for dimensional concepts and their associated dimensions?
This document provides guidance on a number of technical issues related to the use of dimensions in an XBRL taxonomy. It does not attempt to provide guidance on the modelling of specific business requirements using dimensions.
For historical reasons, XBRL provides two alternative containers in which XBRL dimensions can be included, known as "segment" and "scenario". These container elements pre-dates the introduction of XBRL Dimensions, and the split is now redundant.
The choice of which to use is arbitrary, as it does not affect the semantic meaning of the dimensions.
Taxonomy authors should pick one option and use it consistently. Where a taxonomy needs to be consistent with prior versions, or needs to interoperate with other taxonomies, the decision should be guided by what is done in those taxonomies.
In the absence of other factors, it is suggested that the scenario element is used.
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