Documents obtained by The Associated Press show that Iowa President Bruce Harreld and Barta reached a five-year contract extension last month. It guarantees Barta $4.6 million in compensation through June 30, 2021.

The deal increases Barta’s base salary from $400,000 to $550,000 in July and guarantees $250,000 in annual deferred compensation. Both amounts increase by $50,000 in 2018.

Despite fan unrest last year, Barta stuck by football coach Kirk Ferentz. Ferentz led the Hawkeyes to 12 wins and a Rose Bowl appearance.

Barta’s biggest hire, basketball coach Fran McCaffery, has turned a once-moribund program into the nation’s fourth-ranked team.

Barta’s department is also facing a federal investigation into sex discrimination allegations.