Invalid Value for Percentage Items

Rule function

This rule identifies where filers have used an element that has a percentItemType data type that are base taxonomy elements with a value that is greater than the value of 10.

The rule identifies those elements that have a num:percentItemType data type that are base taxonomy elements. (Not extension elements) It then checks that the values reported are less than or equal to 10. If greater than 10 then an error is reported. The rule does not run on those elements which contain the text string “EffectiveIncomeTaxRate” in the concept name.

Problem solved by the rule

The intent of the rule is to identify those percentage items that have a scaling issue associated with them. Percentage items with a value of 11% should be entered as 0.11 rather than 11. If a value of 11 is entered to represent a percentage then an error will be flagged.

Example rule message

The element PercentageOfPortfolio with a value of 11 has a value greater than a 1,000 percent. Percentage items should have a value that are generally between 0 and 1. In XBRL a value of 1 is equal to 100%. Please review the value of the element to ensure that it is scaled correctly. For example 200 basis points should be reported as 0.02.

Period: 2019-01 -01 to 2019-12-31
Dimensions: none
Unit: pure
Decimals: -6

Rule Element ID: 9376
Rule version: 12.0

For Developers

The Global Rule Logic document contains general guidelines for implementation of rules.

The rule message template contains text and parametric reference to arguments of the rule operation, using the syntax ${parameter} to indicate that insertion of a parameter’s value is to occur.

Message template

The element {$fact1.concept.name} with a value of {$fact1} has a value greater than a 1,000 percent. Percentage items should have a value that are generally between 0 and 1. In XBRL a value of 1 is equal to 100%. Please review the value of the element to ensure that it is scaled correctly. For example 200 basis points should be reported as 0.02.

Period: {$fact1.period}
Dimensions: {$fact1.dimensions.join(‘, ‘,’=’)}
Unit: {$fact1.unit}
Decimals: {$fact1.decimals}

Rule Element ID: {$rule_id}
Rule version: {$ruleVersion}

Rule element ID index

The rule element id is used to identify unique elements or combinations of elements tested in the rule.