Creating Extension Concepts

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Sometimes standard taxonomy concepts do not fit a value in your report. To tag the value accurately, you need to create a custom (or extension) concept. Extension concepts are unique to your company.

Basics of Extension Concepts

Extension concepts have the same attributes as standard concepts:

  • Label: The standard name for the concept, such as Deferred Tax Asset, Interest Carryforward.

  • Type: The type of concept.

  • Documentation: Additional information about the concept. This information appears in viewers.

  • Data Type: The kind of data you are tagging.

  • Balance Type: For monetary concepts, select Credit or Debit. Otherwise, select Unspecified. When creating a concept like Gain (Loss) to represent both positive and negative values, select the balance type associated with the positive value.

  • Period Type: For numeric concepts, specify Instant or Duration.

  • Abstract: Select this when creating an Abstract type concept.

Create Extension Concepts

To create extension concepts:

  1. From the XBRL toolbar, click Ext. Concepts.

  2. Click Create New Extension Concept.

  3. Add the necessary information for the extension concept.

  4. Click the green checkmark to finish.

    Create an extension concept

Apply Extension Concepts to a Fact

Any extension concepts you create are available from the Extension tab in the Concept Selector.

To apply an extension concept:

  1. Open the document and click Show XBRL.

  2. Select the fact.

  3. From the Fact Details panel, click Add Concept.

  4. Go to the Extensions tab and select a concept. Click Apply.

    Apply an extension to a fact