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Sometimes the concept alone does not show the full meaning of a numeric value. Adding a dimension provides extra information to clearly define the fact and to group related facts together.

Basics of dimensions

Each dimension applied to a fact has an axis and a member:

• Axis is the characteristic that applies to the fact.
• Member is the specific detail related to the characteristic.

For example, if you disclose the useful life of buildings as a range of time, then apply the same concept to the lower and upper end of the range. Use an axis to identify that you are disclosing a range and the members to identify which value is the lower end (minimum) of the range and which value is the upper end (maximum) of the range.

Before adding a dimension to a fact, make sure:

• There is a table structure in the appropriate section of the XBRL outline for each fact you need to dimensionalize.
  
• All facts you want to dimensionalize are tagged with the correct concept and date.

Add dimensions

To add dimensions to facts:

1

Select the fact that you want to dimensionalize. You can tag cells individually, or you can select multiple cells to tag together.

2

Choose a dimension:

• If using an axis already in the XBRL outline, drag it from the XBRL outline to Select Dimension in the Fact Details panel.
• If adding a new axis from the taxonomy, click Select Dimension in the Fact Details panel. Then find and Apply the dimension.

Add members

You can have one member per axis. Multiple axes can be added to a fact when further dimensionalization is necessary.

To add a member:

1

Choose a member:

• If using a member already in the XBRL outline, drag the member from the XBRL outline to the Select Member button.
• If selecting a new member from the taxonomy, click Select Member in the Fact Details panel. Then find and Apply the member.

2

Add an axis for each additional member the fact needs to differentiate it from other facts in the document.