Opposite of "summary"
Solution 1:
At work I generated a report system with two buttons on the main screen: "Summary Reports" and "Detailed Reports". Does "Detail" or "Detailed" work for you? Can you give an example sentence where you'd like to use this word?
For reports, I have sometimes seen terms like "High-level" for "Summary" and "Low-level" for "Detailed" interchangeably.
Solution 2:
Elaboration is the opposite of summary.
Solution 3:
I actually like analysis for this purpose -- it suggests that the report contains more than just results but also the raw data and reasoning that lead to them. Detailed is also good.
Solution 4:
Comprehensive End of Month Report may be appropriate in your context.