Excuse me for keeping things abstract, I do not want to include more details than necessary.
I'm working on an internship. The internship goal is applying known (published) information and evaluating it in practice. I will conclude the internship by writing a report.
I want to include as much information as necessary in my report for it to be as comprehensive as possible for the reader. This allows the reader to decide if they can skip ahead (instead of me). I do not want to leave details out that may be critical for the readers understanding, even though they seem almost trivial to me, as that makes the report harder to read.
That said, my question:
Is it good form to repeat the core content of the original work in my report, or should I keep it as brief as possible? Is there an accepted middle-ground, or is it not that important as I think?
Of course I will not literally copy-paste content. I will cite the original work and explain exactly what my contribution is(n't), and refer to the original publication.
My fear is that it seems indecent to "copy" findings that someone spend a lot of effort on.