Item

XBRL technical term for a kind of element.

Instance or instance document

XML file that contains business reporting information and represents a collection of financial facts and report-specific information using tags from one or more XBRL taxonomies

Imputed value

A value that is not specifically provided but could be calculated based on other provided numbers and calculation weights.

Hierarchy

Trees (presentation, calculation, and so forth) used to express and navigate relationships

Fact

The occurrence in an instance document of a value or other information tagged by a taxonomy element.

Extension taxonomy or extension

A taxonomy that allows users to add to a published taxonomy in order to define new elements or change element relationships and attributes (presentation, calculation, labels, and so forth) without altering the original.

Element definition

A human-readable description of a reporting concept. From an XBRL technical point of view, the element definition is the label with the type “documentation,” and there are label relationships in a label relationships file, but from a user point of view the definition is an unchangeable attribute of the element.

Element

XBRL components (items, domain members, dimensions, and so forth). The representation of a financial reporting concept, including: line items in the face of the financial statements, important narrative disclosures, and rows and columns in tables.