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XBRL taxonomies define concepts using XML Schema element declarations. This allows concepts to make use of the XML Schema data type system, which includes the ability to define elements which take as their value one of an enumerated set of values. This is useful functionality, but it is not without limitations.
The XBRL Extensible Enumerations [EXTENSIBLE ENUMERATIONS 1.0] specification provides a mechanism that addresses these limitations, but does not provide a mechanism for addressing "multi-valued" enumerations. This requirement was noted in the Requirements for Extensible Enumerations 1.0 [EXTENSIBLE ENUMERATIONS REQUIREMENTS 1.0], but there was insufficient time available to address it properly.
This document provides requirements for an extension to the Extensible Enumerations specification that addresses multi-valued enumerations.
In some cases, it is desirable to allow a fact to select multiple values from a list of enumerated values, rather than just a single choice. A number of use cases for this functionality have been identified:
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This document could not have been written without the contributions of many people.
|12 October 2016||Paul Warren||
First release of requirements for Extensible Enumerations 1.1
This appendix contains a list of the errata that have been incorporated into this document. This represents all those errata corrections that have been approved by the XBRL International Base Specification and Maintenance Working Group up to and including 12 October 2016. Hyperlinks to relevant e-mail threads may only be followed by those who have access to the relevant mailing lists. Access to internal XBRL mailing lists is restricted to members of XBRL International Inc.
No errata have been incorporated into this document.