How does XBRL handle footnotes appended to a financial statement?
A footnote to a financial statement is an appendage at the bottom of a statement used to divulge additional information regarding a data element or concept (i.e. time period, etc.). This is distinct from The Notes to Financial Statements which are a set of sections elaborating financial statement data located after the financial statements. In order for the footnote to render at the foot of the Core Financial Statement in a viewer, it must be associated and referenced as such to one of the following items within the Financial Statement: • line item or label • numerical values • time periods in the column heads, or • title of the Financial Statement. The footnote will not be tagged in XBRL, according to the SEC XBRL technical specifications, if the footnote is not associated and referenced properly to these data items.