How do I ensure my company's financial documents meet the requirements set forth by the SEC?

I would refer you to the "The Essential XBRL Quality Checklist" posted after a Proformative webinar focused on XBRL. https://www.proformative.com/resources/essential-xbrl-quality-checklist

Use an appropriate checklist, which should be available from your outside accountants or any financial reporting service that your company subscribes to. There are different checklists for interim reporting, annual reporting, public companies, etc.

Have someone involved in financial reporting fill out the checklist and then some other appropriate person review it and sign off on it. Your outside auditors will usually want to review it also.