Hi Jacob,
I did this for my previous company. I unfortunately don't have an example for you but I can tell you it was very helpful to them when I left the comapny. It's also a great tool just for reference. I had it indexed well so that some sections could be used for our inside sales team to reference vs some more technical sections. The challenge with such a document is it needs constant updating! We were always editing campaigns, scoring, operational campaigns, etc so it's something you need to have a good grasp on what's happening in your instance in order to keep it relevant.
Good luck!
Kim