Do the document type IDs need to be persisted when creating a document?

I'm creating a document using the "Create Document" endpoint "fleet/documents". The documentation states that a UUID is required for creating the document, but it's unclear as to whether or not that UUID should persist.

For example, if I create a document named "ABC" for driver X, and give it a UUID of "123" (for the sake of brevity here), then when I create another instance of the document "ABC", but this time for driver "Y", does that document also need a UUID of "123"?