Hi Parker – thanks for writing. SEC filers create their own dictionary when they submit a filing. It includes importing the chosen base taxonomy (US GAAP or IFRS) and adding any company-specific extension concepts that are not defined in the base taxonomy.
I’m not familiar with features of iXBRL Analyst, so can’t advise you on whether these are accessible in that tool. Our XBRL Filed Data extension lets Member institutions create a simple query (either entire base taxonomies or extensions) to return the entire list of concepts (the dictionary). Anyone can search for concepts from the task pane of the extension.
There’s a Taxonomy Viewer link in the Documentation & Discussion section on the right-side of this page that can be used to search the latest US GAAP Taxonomy. This Taxonomy viewer can be used to search IFRS concepts: https://bigfoot.corefiling.com/yeti/resources/yeti-gwt/Yeti.jsp
These are the latest accepted and supported base taxonomies:
https://xbrl.us/2022-us-gaap (an excel of terms can be downloaded from this page)
https://xbrl.us/sec-ifrs-2022