Jacques Rogge is moving on, 12 years after taking over an International Olympic Committee that is in much sturdier shape than when he arrived.

Thomas Bach, a 59-year-old lawyer from Germany, is succeeding Rogge and was elected on Tuesday in Buenos Aires.

Rogge, who steps down after a 12-year term that spanned three Summer Olympics and three Winter Games. Rogge's tenure was marked by some challenges, but relative stability compared to the two-decade reign of his predecessor, Spaniard Juan Antonio Samaranch.

An orthopedic surgeon who competed in three Olympics in sailing, Rogge is completing his term with a reputation for bringing a calm and steady hand to the often turbulent world of Olympic politics.

He took a hard line against doping and ethics violations, created the Youth Olympics, oversaw a growth in IOC finances during a time of global economic crisis and made peace with the U.S. Olympic Committee after years of bitter squabbling over revenues.

Under Rogge's watch, the IOC has also taken the Olympics to new places, including awarding the 2016 event to Rio de Janeiro for the first games in South America.