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Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Subscription [Member]
Cost of revenues:
Stock-based compensation	$ 1,276	$ 201	$ 2,514	$ 524
Professional services and other [Member]
Cost of revenues:
Stock-based compensation	495	71	964	151
Sales and marketing [Member]
Cost of revenues:
Stock-based compensation	2,899	800	6,852	1,373
Research and development [Member]
Cost of revenues:
Stock-based compensation	1,919	263	4,121	524
General and administrative [Member]
Cost of revenues:
Stock-based compensation	$ 1,624	$ 1,056	$ 4,137	$ 1,652

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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