Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying Amount of Goodwill

The changes in carrying amount of goodwill for the years ended December 31, 2015 and 2014 were as follows:

	Carrying Value
	(in thousands)
Goodwill - December 31, 2013	$	159,342
Goodwill - December 31, 2014	159,342
Additions	12,745
Goodwill - December 31, 2015	$	172,087

Acquisition Related Intangible Assets

Our acquisition-related intangible assets as of December 31, 2015 and 2014 were as follows:

	December 31, 2015
	Gross Carrying Value		Accumulated Amortization			Net Carrying Amount
	(in thousands)
Trade name and trademarks	$	4,060	$	(3,096	)	$	964
Technology	36,290		(19,552		)	16,738
Customer relationships	21,030		(9,450		)	11,580
Assembled workforce	$	962	$	(70	)	892
Total other intangible assets	$	62,342	$	(32,168	)	$	30,174

	December 31, 2014
	Gross Carrying Value		Accumulated Amortization			Net Carrying Amount
	(in thousands)
Trade name and trademarks	$	4,060	$	(2,296	)	$	1,764
Technology	36,290		(13,669		)	22,621
Customer relationships	21,030		(7,100		)	13,930
Total other intangible assets	$	61,380	$	(23,065	)	$	38,315

Estimated Future Amortization of Acquisition-related Intangible Asset

Estimated future amortization of acquisition-related intangible asset for future periods is as follows:

Years Ending December 31,	(in thousands)
2016	$	9,977
2017	7,639
2018	7,064
2019	2,518
2020	1,350
Thereafter	1,626
	$	30,174