Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of the Changes in the Carrying Amount of Goodwill

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

	2015			2014
Beginning balance	$	1,051,294		$	757,368
Acquisition of Prolexic Technologies, Inc.	—			293,926
Acquisition of Xerocole, Inc.	12,859			—
Acquisition of Codemate A/S	69,445			—
Acquisition of Bloxx Limited	17,694			—
Foreign currency translation	(1,048		)	—
Ending balance	$	1,150,244		$	1,051,294

Schedule of Acquired Intangible Assets

Acquired intangible assets that are subject to amortization consisted of the following as of December 31, 2015 and 2014 (in thousands):

	December 31, 2015							December 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Completed technologies	$	120,791	$	(58,633	)	$	62,158	$	88,331	$	(45,537	)	$	42,794
Customer-related intangible assets	191,710		(102,872		)	88,838		173,600		(91,160		)	82,440
Non-compete agreements	6,540		(3,374		)	3,166		8,890		(4,224		)	4,666
Trademarks and trade names	3,700		(1,767		)	1,933		3,700		(1,188		)	2,512
Acquired license rights	490		(490		)	—		490		(490		)	—
Total	$	323,231	$	(167,136	)	$	156,095	$	275,011	$	(142,599	)	$	132,412