Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2014

Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the three months ended March 31, 2014 were as follows:

Balance at December 31, 2013	$	65,280
Foreign currency translation		(548	)
Balance at March 31, 2014	$	64,732

Summary of Intangible Assets

A summary of intangible assets at March 31, 2014 and December 31, 2013 follows:

	March 31, 2014
	Weighted Average Amortization Period		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Acquired technology		7.0 years	$	19,749	$	(10,471	)	$	9,278
Customer relationships		12.1 years		26,993		(9,781	)		17,212
Covenant not to compete		4.2 years		381		(133	)		248
Acquired trademarks		4.5 years		1,104		(310	)		794
Trademarks		indefinite		430		—			430
Total			$	48,657	$	(20,695	)	$	27,962

	December 31, 2013
	Weighted Average Amortization Period		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Acquired technology		7.0 years	$	19,889	$	(10,070	)	$	9,819
Customer relationships		12.1 years		27,117		(9,013	)		18,104
Covenant not to compete		4.2 years		382		(112	)		270
Acquired trademarks		4.5 years		1,113		(246	)		867
Trademarks		indefinite		430		—			430
Total			$	48,931	$	(19,441	)	$	29,490

Future Amortization Expense Related to Intangible Assets

The Company estimates the following amortization expense related to its intangible assets for the years ended December 31:

2014 (remaining nine months)	$	3,802
2015		4,633
2016		4,211
2017		3,756
2018		3,147
Thereafter		7,983
	$	27,532