Summary of Significant Accounting Policies (Basis of Presentation and Principles of Consolidation) (Details) In Thousands, except Share data, unless otherwise specified	12 Months Ended				1 Months Ended		0 Months Ended			0 Months Ended
	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2011 USD ($)	Jun. 12, 2013 USD ($)	Mar. 28, 2013 Common Stock [Member]	Mar. 27, 2013 Common Stock [Member]	Sep. 20, 2013 Common Stock [Member] Underwriter [Member]	Jun. 12, 2013 Common Stock [Member] Underwriter [Member]	Nov. 07, 2011 Submittal Exchange [Member]	Jun. 12, 2013 Submittal Exchange [Member] Class A Preferred Units [Member]	Jun. 12, 2013 IPO [Member]	Jun. 12, 2013 IPO [Member] Common Stock [Member] USD ($)	Sep. 20, 2013 Follow on Public Offering [Member] USD ($)	Sep. 20, 2013 Follow on Public Offering [Member] Common Stock [Member] USD ($)	Oct. 31, 2012 Textura Australasia, Pty. Ltd. [Member] AUD
Schedule of Equity Method Investments [Line Items]
Voting interests acquired									100.00%
Shares issued upon conversion										0.5
Cash contributions															400
Percentage of ownership in joint venture															50.00%
Common stock, shares authorized	90,000,000	90,000,000			90,000,000	20,000,000
Stock split, conversion ratio					2
Shares of stock issued							687,000	750,000			750,000	5,750,000		1,687,000
Offering price per share				$ 15.00									$ 38.00
Aggregate offering price, net of issuance costs	138,613	0	0									80,213	61,221	61,221
Payments of Stock Issuance Costs												6,037		2,885
Deferred offering costs												$ 2,504		$ 1,442