FASB XBRL US DQC Rules Taxonomy

The FASB XBRL US DQC Rules Taxonomy (DQCRT) is an XBRL representation of select XBRL US Data Quality Committee’s (DQC) validation rules that is now included with the annual U.S. GAAP Financial Reporting Taxonomy release.  
 
The DQCRT is uniquely structured from the typical design of XBRL taxonomies because it is narrowly focused on conveying the DQC validation rules, predominantly for regulator use. It is not intended to be used in Securities and Exchange Commission (SEC) filers’ extension taxonomies the way that the U.S. GAAP Financial Reporting Taxonomy or the SEC’s Document and Entity Information (DEI) Taxonomy is used. To use the DQC validation rules, there are resources available at the XBRL US DQC website or contact your service provider.
 
The DQCRT contains a subset of the DQC rules. FASB Taxonomy Staff evaluate the validation rules for inclusion in the DQCRT that have been available for use for more than a year, with consideration for how the DQC addressed any feedback received on a validation rule.
 
The 2021 DQCRT can be accessed through the entry point provided below: The 2020 DQCRT can be accessed through the entry point provided below: Purpose of the DQCRT
 
The DQCRT is included with the U.S. GAAP Financial Reporting Taxonomy for the specific goal of enhancing data quality by increasing exposure to and use of the DQC validation rules that are provided by XBRL US.
 
Included Validation Rules
  • DQC 0001: Axis with Inappropriate Members (added with the 2020 DQCRT)
    Certain axes in the US GAAP taxonomy should only have certain members as shown in the US GAAP taxonomy. This rule tests whether these axes have inappropriate members. 
  • DQC 0004: Element Values Are Equal (added with the 2021 DQCRT)
    This rule tests that the values reported between element relationships that are identified as an accounting constant are consistent within the filing. For example, Assets equals Liability and Equity. 
  • DQC 0008: Reversed Calculation (added with the 2020 DQCRT)
    This rule evaluates whether a calculation relationship in the company’s extension is a reversal of the calculation defined in the base taxonomy used for the filing. 
  • DQC 0009: Element A must be less than or equal to Element B (added with the 2021 DQCRT)
    This rule tests that the fact value for certain elements are less than or equal to the fact value of other elements. 
  • DQC 0015: Negative Values (added with the 2020 DQCRT)
    This rule tests elements that should not be reported with negative values. 
  • DQC 0048: Required Calculation Parent Element in the Cash Flow Statement (added with the 2021 DQCRT)
    This rule tests that at least one of the changes in cash elements named in this rule appears as the ultimate parent (root node) in at least one calculation linkbase tree. 
Guidance and Supporting Documents include:

TAXONOMY DOWNLOADS

  • Download 2021 DQCRT
    (requires XBRL enabled software to view; DQCRT is included in the U.S. GAAP Financial Reporting Taxonomy)
  • Download 2020 DQCRT
    (requires XBRL enabled software to view; DQCRT is included in the U.S. GAAP Financial Reporting Taxonomy) 
Contact Information
 
David M. Shaw
dmshaw@fasb.org
203-956-5332