Business Acquisitions and Divestitures (Tables)

12 Months Ended

Dec. 31, 2013

Business Acquisition [Line Items]

Schedule of Acquired Intangible Assets

Acquired intangible assets that are subject to amortization consisted of the following as of December 31, 2013 and 2012 (in thousands):

	December 31, 2013							December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Completed technologies	$	65,631	$	(35,476	)	$	30,155	$	71,531	$	(32,842	)	$	38,689
Customer relationships	115,100		(75,563		)	39,537		104,700		(68,702		)	35,998
Non-compete agreements	7,950		(2,623		)	5,327		14,770		(7,645		)	7,125
Trademarks and trade names	3,400		(990		)	2,410		3,700		(958		)	2,742
Acquired license rights	490		(490		)	—		490		(490		)	—
Total	$	192,571	$	(115,142	)	$	77,429	$	195,191	$	(110,637	)	$	84,554

Cotendo

Business Acquisition [Line Items]

Schedule of Purchase Price Allocation

The following table presents the final allocation of the purchase price of Cotendo (in thousands):

Total purchase consideration	$	278,877
Allocation of the purchase consideration
Current assets, including cash and cash equivalents of $6,405	$	6,751
Trade receivables	2,920
Property and equipment	5,812
Indemnification assets	6,200
Long-term assets	75
Identifiable intangible assets	43,800
Goodwill	233,828
Deferred tax liabilities	(15,376		)
Other liabilities assumed	(5,133		)
	$	278,877

Schedule of Acquired Intangible Assets

The following were the identified intangible assets acquired and the respective estimated periods over which such assets will be amortized (in thousands, except for years):

	Gross Carrying Amount		Weighted Average Useful Life
Completed technology	$	24,100	6
Customer relationships	13,400		9
Non-compete agreements	3,900		6
Trademarks and trade names	2,400		10
Total	$	43,800