The SEC published a new rule proposing that Inline XBRL tagging be required for all fee calculation table and fee footnotes in fee bearing filings, including Funds and Transactional 1933 Act filings, tender offers, proxies (with fees), etc. On page 10 of the rule:
amend most fee-bearing forms, schedules and statements to provide that each fee table, together with related explanatory notes to the fee table, include all required information for fee calculation in a structured format using Inline eXtensible Business Reporting Language (“XBRL”).
Comment letters are due 60 days after publication in the Federal Register.
Read the proposal: https://www.sec.gov/rules/proposed/2019/33-10720.pdf