Condensed Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2013	Oct. 31, 2012
Stock-based compensation	$ 2,086	$ 181	$ 4,036	$ 490
Cost of subscription services [Member]
Stock-based compensation	49	1	58	2
Cost of professional services and other [Member]
Stock-based compensation	230	30	458	81
Research and development [Member]
Stock-based compensation	429	65	895	155
Sales and marketing [Member]
Stock-based compensation	488	34	970	97
General and administrative [Member]
Stock-based compensation	$ 890	$ 51	$ 1,655	$ 155