text block

denotes that the element type is a block of text; it is used to mark up larger pieces of information, such as notes, accounting policies or tables; text blocks are non-numeric line items

text

denotes that the element type is text (a sequence of alphanumeric characters); it is used to mark up short pieces of narrative information; text elements are non-numeric line items

yyyy-mm-dd

denotes that the element type is a date; these elements are line items and non-numeric

X

denotes that the element type is monetary (a number in a declared currency); these elements are numeric line items

X.XX

denotes that the element type is a decimalised value (such as a percentage or a 'per share' value); these elements are numeric line items

shares

denotes that the element type is a number of shares; these elements are numeric line items

table

denotes the beginning of a structure represented by a table where rows and columns contribute to definition of a financial concept on their intersection

axis

denotes a dimensional property in a tabular structure