Factors associated with internal audit function involvement with XBRL implementation in public companies: An international study

We examine the relationships of national legal system, company size, and corporate governance quality with internal audit function (IAF) involvement with eXtensible Business Reporting Language (XBRL) implementation in public companies. Our data source is The Institute of Internal Auditors' Global Internal Audit Common Body of Knowledge (CBOK) database, from which we extract responses from 692 chief audit executives (CAEs) for our investigation. We find evidence of differential effects of company size on IAF involvement with XBRL implementation, depending on the national legal system. In civil law countries, IAFs of small companies have significantly higher levels of XBRL involvement than do IAFs of large companies, whereas, in common law countries, IAFs of large companies have higher levels of involvement than do those of small companies. Finally, we find evidence that corporate governance quality is positively associated with IAF involvement with XBRL implementation.