What happens if I delete a portal user?

What happens if I delete a portal user?

Hello,

I have a few employees (users) who are no longer with my organization.  However, they are creators/owners of several projects (and even templates), as well as being assignees of tasks of course.

If I delete the portal users, what happens to their projects?  Templates?  Tasks?  I assume they they would all just become "unassigned" but I want to make absolutely sure as we cannot lose any of this information if I delete the users from the portal.

Thanks,
Jared