Updated

Penn State has released a document detailing its agreement with former FBI director Louis Freeh to investigate the Jerry Sandusky child sex abuse scandal, a review that cost the school about $8.1 million.

Penn State's total costs associated with the scandal topped $41 million as of the end of December, the university disclosed Monday on a website.

The monthly financial update provided more itemization for certain costs, including the Freeh report.

Some vocal alumni had called on university leadership to release itemized costs, in part to promote transparency. Those critics had also asked the university to release the letter of agreement with Freeh, or "engagement letter," that outlined the scope and responsibilities of the former FBI director in leading the internal investigation into the scandal.