Tagging Numeric Facts with Units

CIPC requires you to clearly identify what each tagged number is in your document. To accomplish this, XBRL uses the concept and additional fact properties, such as unit type and accuracy. Most concepts for numeric facts have unit types that clearly identify what the number is. For those that don’t, you need to apply a unit type and accuracy.

NOTE: Unit types are created for you and available in the Fact Properties panel below the document.

Understanding Units

To better understand units, consider the following:

  • All XBRL for CIPC concepts have a unit type, such as monetary, percent, string, or boolean.

  • Each numeric concept has a unit type.

  • Each concept type determines which units you can use for that fact. For example, a monetary concept type allows you to use only currency units, such as a net profit concept using ZAR as the unit.

Most numeric fact concepts already have the correct unit type associated with them. For example, concepts for number of shares have the unit type of shares.

image alt text

Sometimes you may have a monetary concept type that needs the correct unit to specify what the number is.

For example, share-based concepts are monetary. So you need to specify which currency unit applies to the concept, such as ZAR per share.

NOTE: Contact your CSM if you need a unit type created.

Commonly Used Units

When deciding on a unit, you must take into account the item type of the concept, and then use an appropriate unit.

The standard, predefined units available for CIPC XBRL include the following:

  • Shares

  • Common currencies, such as ZAR

  • Number, such as percentages, rates, and ratios

NOTE: Units are predetermined based on the Unit Type Registry (http://www.xbrl.org/utr/utr.xml).

Applying Units and Setting Accuracy

To apply units:

  1. Open the document in Wdesk and select the fact. NOTE: A fact might still appear red if XBRL doesn’t recognize what the number is.

  2. Click the Fact Properties icon (the X) in the lower right corner of the editor window.

    image alt text

  3. Select the appropriate Unit and Accuracy.

  4. Click the green Apply Property Changes checkmark to save your changes.

    image alt text

  5. Share all changes.

Viewing Additional Unit Information

You can click the blue Information icon to see more information about the unit. Additional information includes the Unit ID, Unit Type, Unit Measure, and Unit Description.

NOTE: Editing is available only for custom units. Contact your CSM for more information about custom units.

image alt text