XBRL provides a set of standard units that may appear in XBRL instances. As XBRL applications have emerged, unit declarations have appeared in XBRL instance documents having multiple names for equivalent meanings, and identical names having different meanings. The goal of the XBRL Units Registry (UTR) is to be a public, online data set that documents these units and their usage.
The Specification document listed below describes the UTR and the process by which it is is updated. This process is intended to maximise the utility and longevity of the new units and the taxonomies that use them.
The latest version of the UTR will always be on the URL www.xbrl.org/utr/utr.xml.
Units Registry (Proposed Recommendation) December 21, 2011 update to Structure May 17, 2013
These documents describe the XBRL International Units Registry (UTR) and the process by which it is updated.
Comments on these documents or the contents of the registry may be sent at any time to email@example.com.
The following two documents define the Structure and update process for the Data Type Registry
Units Registry Conformance 1.0 (Public Working Draft) May 17, 2013
A zip file of sample conformance suite tests can be downloaded here.
Comments on the registry, the update processand submissions for the Units Registry should be sent to the Units Registry Approval Manager at firstname.lastname@example.org.
The schema for the UTR can be found at:
Previous versions of the UTR can be found at the following locations: