Does Stanford require IDOC from international students (no tax filing required)?

I am going to be a first-year international student, and Stanford’s website did not clarify whether they require international students to submit IDOC. We also do not file tax returns in my country, so I was surprised to not find a form for non-tax filers on their website. Can anyone clearly explain their requirements? thanks

IDOC is not something that is (or can be) submitted; it is an electronic system for transmitting whatever documents the schools that use IDOC are asking for.

Stanford’s requirements for international applicants seeking need-based financial aid are clearly stated on the school’s website.