Other Income (Loss) - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) contingent_consideration_obligation	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) contingent_consideration_obligation	Jun. 30, 2014 USD ($)	Dec. 31, 2014 contingent_consideration_obligation
Schedule Of Other Nonoperating Income Expense [Line Items]
Number of contingent consideration obligations | contingent_consideration_obligation	2		2		3
Payment for contingent consideration obligations			$ 1,870	$ 0
FolioDynamix
Schedule Of Other Nonoperating Income Expense [Line Items]
Contingent Consideration Obligation, Aggregate Settlement Amount	$ 2,000
Anthem
Schedule Of Other Nonoperating Income Expense [Line Items]
Proceeds from sales / distributions of ownership interests			1,000
Acquirgy
Schedule Of Other Nonoperating Income Expense [Line Items]
Loan repayment from equity / cost method investment			$ 400
StarCite
Schedule Of Other Nonoperating Income Expense [Line Items]
Proceeds from sales / distributions of ownership interests				300
Other income (loss), net
Schedule Of Other Nonoperating Income Expense [Line Items]
Excess in settlement of contingent consideration liability	$ 100
Other income (loss), net | WhiteFence
Schedule Of Other Nonoperating Income Expense [Line Items]
Gain on disposition of business		$ 500		$ 500