No, moving a document to the Recycle Bin is not permanent. A super manager may restore it at a later time. However, the admin can also permanently delete the document from the Recycle Bin.
visit
sweetprocess.com/accounts/recycle/to see the contents of your recycle bin

Someone without permanent delete access may only restore.
While the admin will see an option to 'Delete Permanently'
Once deleted permanently we erase the document from our databases completely. We are generally not able to retrieve documents once they are permanently deleted, though if the document was very important to you please contact our support and they may be able to load an offsite backup and attempt recovery from there.