Columbia Banking System Inc (NASDAQ:COLB) reported upbeat earnings for the fourth quarter on Thursday.The company posted quarterly earnings of 82 cents per share which beat the analyst consensus estimate of 71 cents per share. The company reported quarterly sales of $717.000 million which beat the analyst consensus estimate of$696.191 million.“Our fourth quarter performance marked a strong end to a tremendous year for Columbia, reflecting continued momentum across our businesses and our commitment to consi ...