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Goodwill - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jun. 08, 2016	Dec. 31, 2015	Dec. 08, 2015	Dec. 31, 2014	Oct. 02, 2014
Goodwill [Line Items]
Goodwill	$ 166,256		$ 161,753		$ 5,227
Impairment of goodwill	0
Interactive Data [Member]
Goodwill [Line Items]
Goodwill	$ 5,227					$ 5,227
Effective date of business acquisition	Oct. 02, 2014
Fluent Acquisition [Member]
Goodwill [Line Items]
Goodwill	$ 155,645			$ 155,645
Effective date of business acquisition	Dec. 08, 2015
Q Interactive, LLC [Member]
Goodwill [Line Items]
Goodwill	$ 5,384	$ 5,384
Effective date of business acquisition	Jun. 08, 2016