Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Intangible Assets

Schedule of intangible assets

	At December 31, 2014
							Weighted
	Gross Carrying		Accumulated		Net Carrying		average useful
	Value		amortization		Value		life in years
Acquired technology and domain name	$	31,090	$	(10,788)	$	20,302	9.70
Customer relationships		6,300		(2,491)		3,809	8.97
Tradenames		4,900		(1,062)		3,838	15.00
Total	$	42,290	$	(14,341)	$	27,949	10.20

	At December 31, 2013
							Weighted
	Gross Carrying		Accumulated		Net Carrying		average useful
	Value		amortization		Value		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,
	2014		2013		2012
Acquired technology and domain name	$	3,164	$	3,318	$	3,343
Customer relationships		760		760		760
Trade names		327		327		373
Total amortization	$	4,251	$	4,405	$	4,476

Expected amortization expense with respect to intangible assets at December 31, 2014 for each of the five years through December 31, 2019 and thereafter

Years ended December 31,
2015	$	4,134
2016		4,041
2017		3,862
2018		3,861
2019		3,791
Thereafter		8,260
Total amortization expense	$	27,949