X0303 4 2009-10-26 false 0000040211 GATX CORP GMT 0001020070 FAIRBANKS RICHARD M 1250 24TH ST NW, STE 300 WASHINGTON DC 20037 true false false false Common Stock 2009-10-26 4 S false 23 28.97 D 51198.1793 D Common Stock 2009-10-26 4 S false 500 28.98 D 50698.1793 D Common Stock 2009-10-26 4 S false 100 28.99 D 50598.1793 D Common Stock 2009-10-26 4 S false 200 29 D 50398.1793 D Common Stock 2009-10-26 4 S false 1877 29.16 D 48521.1793 D Common Stock 2009-10-26 4 S false 300 29.17 D 48221.1793 D Common Stock 2009-10-26 4 S false 200 29.18 D 48021.1793 D Common Stock 2009-10-26 4 S false 2900 29.2 D 45121.1793 D Common Stock 2009-10-26 4 S false 1300 29.21 D 43821.1793 D Common Stock 2009-10-26 4 S false 800 29.22 D 43021.1793 D Common Stock 2009-10-26 4 S false 200 29.26 D 42821.1793 D Common Stock 2009-10-26 4 S false 800 29.31 D 42021.1793 D Common Stock 2009-10-26 4 S false 300 29.33 D 41721.1793 D Common Stock 2009-10-26 4 S false 500 29.45 D 41221.1793 D Lisa M. Ibarra, by Power of Attorney on behalf of Richard Fairbanks 2009-10-28