Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2014

Intangible Assets

Schedule of intangible assets

	At December 31, 2012
	Gross Carrying Value		Accumulated amortization			Net Carrying Value		Weighted average useful life in years
Acquired technology and domain name	$	30,713	$	(4,306	)	$	26,407		9.75
Customer relationships		6,300		(972	)		5,328		8.97
Tradenames		4,970		(478	)		4,492		14.80
Total	$	41,983	$	(5,756	)	$	36,227		10.23

	At December 31, 2013
	Gross Carrying Value		Accumulated amortization			Net Carrying Value		Weighted average useful life in years
Acquired technology and domain name	$	30,725	$	(7,624	)	$	23,101		9.75
Customer relationships		6,300		(1,732	)		4,568		8.97
Tradenames		4,970		(805	)		4,165		14.80
Total	$	41,995	$	(10,161	)	$	31,834		10.23

Schedule of amortization expense

	Year Ended December 31,						Six Months Ended June 30,
	2011		2012		2013		2013		2014
							(unaudited)
Acquired technology and domain name	$	963	$	3,343	$	3,318	$	1,658	$	1,636
Customer relationships		212		760		760		380		380
Tradenames		105		373		327		163		163
Total amortization	$	1,280	$	4,476	$	4,405	$	2,201	$	2,179

Amortization expense with respect to intangible assets at June 30, 2014 for each of the five years through December 31, 2018

Years ended December 31,
2014		4,183
2015		4,061
2016		3,968
2017		3,789
2018		3,788
Thereafter		12,045
Total amortization expense	$	31,834