In your office are several copyeditors who are not only your professional peers but also your friends. You share both professional and personal information with them, and sometimes you eat lunch with them. What type of peer relationship do you have with them

collegial                      

Explanation:

Collegial relationship: The term "collegial relationship" is described as a relationship in which a person shows authority and power equally among different members or colleagues of a specific group. However, in a collegial relationship, all members involved equally while solving specific problems. Therefore, every member tends to work collectively on something.

In the question above, the given statement represents a collegial relationship.