Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Acquisition Related Intangible Assets

Our acquisition-related intangible assets are as follows:

	Gross					Net
	Carrying		Accumulated			Carrying
	Value		Amortization			Amount
Trade name and trademarks	$	4,060	$	(1,439	)	$	2,621
Technology		36,290		(8,485	)		27,805
Customer relationships		21,030		(4,243	)		16,787
	$	61,380	$	(14,167	)	$	47,213

Estimated Future Amortization of Acquisition-related Intangible Asset

Amortization expense for the years ended December 31, 2013, 2012, and 2011 was $7,909 and $6,258, and zero, respectively. Estimated future amortization of acquisition-related intangible asset for future periods is as follows:

Years Ending December 31,
2014	$	8,899
2015		8,334
2016		8,334
2017		7,698
2018		7,534
Thereafter		6,414
	$	47,213