Line Items: [Line items] are a set of concepts which can be reported by an entity, they can contain values. [Line Items] may also contain [Abstract] concepts which can never report values but rather are used to help organize the [Line Items].

Note that XBRL Dimensions uses the term primary items and the US GAAP Taxonomy uses the term [Line Items] to describe the same thing.

Comment: Shouldn't this be changed to "Line Item"?