Showing diameters in a detail view

I have difficulties figuring this out:

I have a detail view of an edge of a flange  and I need to show a diameter but being a scaled up detailI only want to show one arrow with the dimension, as the full diameter dimension line will extend beyond the boundary of my format.   Is there a way to show that in a detail view or the only way would be a note with the dimension?

Thank you

SolidworksDrawings And Detailing