"To take a detour" means to change the usual or direct route that you would normally take, often in order to avoid something or to find a different way to reach your destination. Full definition
What i felt was two strong season in season 1 and 2, season 3 kind of took a detour into unrealistic territory, episode after episode. (metacritic.com)
Asif Kapadia, the skilled and subtle dramatist behind The Warrior and Far North, has here taken a detour from introspective fiction and turned his hand to documentary. (lwlies.com)
Relying, as usual, on Eugene Levy's «Jim's Dad» for a few unfortunate «oh my goodness» reveals, the parade of humiliation this time around takes a detour through «bride's parents» territory with the introduction of Michelle's mom and dad (Deborah Rush and Fred Willard), who, a lot like Jim's Dad, are mainly asked to be the foil / straight people to the picture's tireless puerility. (filmfreakcentral.net)