Condensed Consolidated Statements of Income (unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Revenues
Recurring	$ 54,351us-gaap_ContractsRevenue	$ 36,454us-gaap_ContractsRevenue
Implementation and other	871us-gaap_OtherSalesRevenueNet	531us-gaap_OtherSalesRevenueNet
Total revenues	55,222us-gaap_Revenues	36,985us-gaap_Revenues
Cost of revenues
Operating expenses	7,471us-gaap_OperatingCostsAndExpenses	6,292us-gaap_OperatingCostsAndExpenses
Depreciation	810us-gaap_CostOfServicesDepreciation	630us-gaap_CostOfServicesDepreciation
Total cost of revenues	8,281us-gaap_CostOfRevenue	6,922us-gaap_CostOfRevenue
Administrative expenses
Sales and marketing	21,229us-gaap_MarketingExpense	15,681us-gaap_MarketingExpense
Research and development	1,867us-gaap_ResearchAndDevelopmentExpense	882us-gaap_ResearchAndDevelopmentExpense
General and administrative	11,984us-gaap_GeneralAndAdministrativeExpense	9,268us-gaap_GeneralAndAdministrativeExpense
Depreciation and amortization	1,323us-gaap_DepreciationAndAmortization	1,091us-gaap_DepreciationAndAmortization
Total administrative expenses	36,403	26,922
Total operating expenses	44,684us-gaap_OperatingExpenses	33,844us-gaap_OperatingExpenses
Operating income	10,538us-gaap_OperatingIncomeLoss	3,141us-gaap_OperatingIncomeLoss
Interest expense	(332)us-gaap_InterestExpense	(2,067)us-gaap_InterestExpense
Other income, net	33us-gaap_OtherOperatingIncomeExpenseNet	769us-gaap_OtherOperatingIncomeExpenseNet
Income before income taxes	10,239	1,843
Provision for income taxes	4,244us-gaap_IncomeTaxExpenseBenefit	783us-gaap_IncomeTaxExpenseBenefit
Net income	$ 5,995us-gaap_ProfitLoss	$ 1,060us-gaap_ProfitLoss
Net income per share, basic	$ 0.11us-gaap_EarningsPerShareBasic	$ 0.02us-gaap_EarningsPerShareBasic
Net income per share, diluted	$ 0.11us-gaap_EarningsPerShareDiluted	$ 0.02us-gaap_EarningsPerShareDiluted
Weighted average shares outstanding:
Basic	54,749,951	45,721,584
Diluted	56,562,661	48,371,169

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