9. Goodwill

Goodwill represents the cost in excess of the fair value of the net assets acquired in a business combination. As discussed in Note 1, goodwill is tested for impairment on an annual basis and on an interim basis if an event occurs or circumstances change that would more likely than not reduce the fair value below its carrying value. We performed our annual goodwill impairment tests as of October 1, 2015 and resulted in no impairment of goodwill.

Changes in the amount of goodwill for the years ended December 31, 2015 and 2014, are as follows:


(In thousands)
Balance as of September 21, 2014 (date of inception)	$	—
Addition as a result of Interactive Data acquisition		5,227

Balance as of December 31, 2014		5,227
Addition as a result of the TBO Merger with Tiger Media		35,472
Write-off of goodwill resulted from the disposal of the Advertising Business		(35,472	)
Addition as a result of Fluent acquisition		156,526

Balance as of December 31, 2015	$	161,753

Impairment of goodwill	$	—