The XBRL Glossary categoy of the Open Risk Manual collects definitions of XBRL terms.
The focus of the glossary is to try to clarify the technical nomenclature as it appears in the XBRL specification, which is somewhat arcane and confusing. General business reporting terms around XBRL Reporting are in separate categories under the XBRL node.
In due course the aim is to further populate the examples of the various glossary entries and potentially also include relevant snippets illustrating the XBRL format.