Assurance on XBRL for Financial Reporting

SYNOPSIS: Since 2004, the Securities and Exchange Commission (SEC) has taken steps toward requiring eXtensible Business Reporting Language (XBRL) to be used in its filings, including a voluntary filing program. “Tagging” financial information using XBRL creates documents that are computer readable and searchable. Once XBRL is required, investors are likely to demand assurance on the tagging process. The Public Company Accounting Oversight Board (PCAOB) has issued guidance on attest engagements regarding XBRL financial information furnished under the SEC’s current voluntary filer program, which relies on the auditor “agreeing” a paper version of the XBRL-related documents to the information in the official EDGAR filing. This approach may be adequate for the current paper-oriented reporting paradigm. However, once filing in XBRL becomes required, the power of XBRL to allow individual financial datum to be extracted from the SEC’s financial database will be realized. This “data-centric” idea is a crucial ext...