Quarterly Financial Data (unaudited) Quarterly Financial Data (unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended									12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 17,862	$ 16,354	$ 14,965	$ 13,787	$ 12,003	$ 10,853	$ 9,362	$ 8,548	$ 6,771	$ 62,968	$ 40,766	$ 35,534	$ 23,964	$ 21,681
Operating expenses	21,631	23,792	20,945	21,022	19,611	18,912	27,647	13,088	10,966	87,390	79,258	70,613	40,851	38,455
Loss from operations	(3,769)	(7,438)	(5,980)	(7,235)	(7,608)	(8,059)	(18,285)	(4,540)	(4,195)	(24,422)	(38,492)	(35,079)	(16,887)	(16,774)
Net loss	$ (3,907)	$ (7,540)	$ (6,068)	$ (7,340)	$ (6,676)	$ (8,321)	$ (20,363)	$ (4,895)	$ (6,043)	$ (24,855)	$ (40,255)	$ (39,622)	$ (20,267)	$ (18,793)
Net loss per share attributable to Textura Corporation common stockholders, basic and diluted	$ (0.15)	$ (0.30)	$ (0.24)	$ (0.30)	$ (0.27)	$ (0.36)	$ (2.31)	$ (0.56)	$ (0.62)	$ (0.99)	$ (2.82)	$ (3.58)	$ (2.40)	$ (2.31)