Net Income Per Share (Details) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net Income Per Share
Net income attributable to Concur	$ 2,266	$ 3,634	$ 3,288	$ 16,785
Weighted average number of basic shares outstanding	53,936	50,141	53,278	49,546
Diluted	55,758	52,924	55,354	52,735
Net income per share available to common stockholders basic	$ 0.04	$ 0.07	$ 0.06	$ 0.34
Net income per share available to common stockholders diluted	$ 0.04	$ 0.07	$ 0.06	$ 0.32