On my flight today, I encountered total electric failure and therefore lost the ability to communicate with radios. Luckily I was already in talks with flight following and seconds before losing communications, I told them we would be diverting to a nearby delta airspace airport and we were guided down safely with the help of light signals from tower. Upon landing, flight following called us to verify we landed ok and I also called tower whilst taxiing for taxiing help and FBO directions. We are currently awaiting what went wrong and caused the failure. My question is, do I need to file any report to the FAA or NTSB? It’s not an accident nor is it engine related as the airplane still flew fine so I don’t believe I needed to file anything. Also I already talked with both tower and center and they didn’t mention anything about needing to file a report. I also never declared an emergency landing as it didn’t necessarily call for that, but I wanted to make sure, and I cannot find anywhere saying I need to file anything.