Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue:
Recurring technology and services	$ 168,484	$ 137,979	$ 93,671
Strategic consulting, software licenses and other	20,430	16,533	11,270
Total revenue	188,914	154,512	104,941
Cost of revenue:
Recurring technology and services	76,228	63,976	44,814
Strategic consulting, software licenses and other	8,750	6,627	5,165
Total cost of revenue	84,978	70,603	49,979
Gross profit	103,936	83,909	54,962
Operating expenses:
Sales and marketing	33,382	24,840	16,648
General and administrative	34,765	29,317	17,777
Research and development	19,570	16,696	11,860
Depreciation and amortization	10,452	8,666	4,551
Restructuring charge	654		1,549
Income from operations	5,113	4,390	2,577
Other income (expense), net:
Interest expense	(401)	(943)	(3,047)
Interest income	60	80	45
Other (expense) income	1,201	(9)
Increase in fair value of warrants for redeemable convertible preferred stock			(1,996)
(Loss) income before income tax provision	5,973	3,518	(2,421)
Income tax provision	1,011	480	534
Net (loss) income	4,962	3,038	(2,955)
Preferred dividends			(2,168)
Accretion of redeemable convertible preferred stock			(37)
(Loss) income applicable to common stockholders	$ 4,962	$ 3,038	$ (5,160)
(Loss) income per common share:
Basic (in dollars per share)	$ 0.13	$ 0.08	$ (0.31)
Diluted (in dollars per share)	$ 0.12	$ 0.08	$ (0.31)
Weighted average number of common shares:
Basic (in shares)	37,706	36,492	16,412
Diluted (in shares)	40,472	39,870	16,412