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, which are are unique to your company.

Basics of Extension Concepts

Extension concepts have the same attributes as standard concepts:

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

  • Type is the type of concept. It can be non-numeric (abstracts, members, text blocks, etc.) or numeric (monetary, shares, percent, etc.).

  • Documentation is additional information about the concept, which appears in viewers, such as the SEC Viewer.

  • Data Type is the kind of data you are tagging, such as Date Item Type, Monetary Item Type, Text Block Item Type, etc.

  • Balance Type is 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 is for numeric concepts, specify Instant or Duration.

  • Abstract is for a concept you use to organize or group other concepts within the XBRL outline Presentation section, such as Income Statement [Abstract]. Do not use it for a fact or data.

Creating 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

Applying 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 make sure Show XBRL is on.
2
Choose an XBRL profile if one is not already applied.
3
Select the fact.
4
Click Add Concept in Fact Details.
5
Go to the Extensions tab and select a concept.
6
Click Apply.

Apply an extension to a fact