On September 25, as part of the SEC’s Disclosure Effectiveness Initiative, which is a broad-based staff review of the disclosure requirements and the presentation and delivery of the disclosures, the SEC published a Request for Comment on Regulation S-X which specifically covers “THE EFFECTIVENESS OF FINANCIAL DISCLOSURES ABOUT ENTITIES OTHER THAN THE REGISTRANT”. Pages 34 and 35 of the ruling asks:
Currently, financial disclosures related to entities other than a registrant are filed in XBRL format to the extent that they are part of the registrant’s financial statements. Other disclosures, such as the separate financial statements of entities other than the registrant and Pro Forma Financial Information are not required to be presented in a structured, machine-readable format. Would investors benefit from having all of the disclosures related to these entities made in an interactive data format? Would it depend on the nature of the information being disclosed (e.g., disclosure related to a one-time transaction such as an acquisition or ongoing disclosure related to an Investee)? What would be the cost to registrants?
Read the release http://www.sec.gov/news/pressrelease/2015-211.html
Read the rule proposal: http://www.sec.gov/rules/other/2015/33-9929.pdf