Can't find an existing document in binder

I have a document that has disappeared from my binder. When I search for it in the search bar it shows up fine, but I can’t tell where it’s currently living or make it return it to its friends in the binder. What am I missing here?
Hope this question hasn’t already been asked.

Search for it, as you already have, and then while it is selected, escape the search and then press Cmd-Opt-R. That will reveal the selected file(s) and expand whatever part of the Binder is necessary in order to do so.