Business Acquisitions and Divestitures (Tables)

12 Months Ended

Dec. 31, 2014

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, 2014 and 2013 (in thousands):

	December 31, 2014							December 31, 2013
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Completed technologies	$	88,331	$	(45,537	)	$	42,794	$	65,631	$	(35,476	)	$	30,155
Customer relationships	173,600		(91,160		)	82,440		115,100		(75,563		)	39,537
Non-compete agreements	8,890		(4,224		)	4,666		7,950		(2,623		)	5,327
Trademarks and trade names	3,700		(1,188		)	2,512		3,400		(990		)	2,410
Acquired license rights	490		(490		)	—		490		(490		)	—
Total	$	275,011	$	(142,599	)	$	132,412	$	192,571	$	(115,142	)	$	77,429

Prolexic

Business Acquisition [Line Items]

Schedule of Purchase Price Allocation

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

Total purchase consideration	$	392,104
Allocation of the purchase consideration:
Cash	$	33,072
Accounts receivable	11,208
Property and equipment	12,225
Identifiable intangible assets	87,040
Goodwill	293,926
Deferred tax assets	16,340
Other current and long-term assets	5,664
Total assets acquired	459,475
Other current liabilities	(5,940		)
Current deferred revenue	(5,812		)
Deferred tax liabilities	(36,203		)
Debt, capital leases and other long-term liabilities	(19,416		)
Total liabilities assumed	(67,371		)
Net assets acquired	$	392,104

Schedule of Acquired Intangible Assets

The following were the identified intangible assets acquired and their respective weighted average useful lives (in thousands, except for years):

	Gross Carrying Amount		Weighted Average Useful Life (in years)
Completed technologies	$	26,800	6.9
Customer-related intangible assets	58,500		10.4
Non-compete agreements	940		3.0
Trademark	800		4.9
Total	$	87,040

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		)
Net assets acquired	$	278,877

Schedule of Acquired Intangible Assets

The following were the identified intangible assets acquired and their respective weighted average useful lives (in thousands, except for years):

	Gross Carrying Amount		Weighted Average Useful Life (in years)
Completed technology	$	24,100	5.8
Customer relationships	13,400		8.8
Non-compete agreements	3,900		6.0
Trademarks and trade names	2,400		9.8
Total	$	43,800