Goodwill and Purchased Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The following table presents goodwill activity during the six months endedJune 30, 2016 (in millions):

Balance as of December 31, 2015	$	2,981.3
Additions due to business combination	20.3
Balance as of June 30, 2016	$	3,001.6

Finite-lived intangible assets by major class

The Company’s purchased intangible assets were as follows (in millions):

	Gross		Accumulated Amortization			Accumulated Impairments and Other Charges			Net
As of June 30, 2016
Intangible assets with finite lives:
Technologies and patents	$	604.8	$	(498.1	)	$	(49.9	)	$	56.8
Customer contracts, support agreements, and   related relationships	83.4		(69.2		)	(2.8		)	11.4
Other	2.0		(1.1		)	—			0.9
Total purchased intangible assets	$	690.2	$	(568.4	)	$	(52.7	)	$	69.1
As of December 31, 2015
Intangible assets with finite lives:
Technologies and patents	$	567.7	$	(491.8	)	$	(49.9	)	$	26.0
Customer contracts, support agreements, and   related relationships	78.1		(67.8		)	(2.8		)	7.5
Other	1.1		(0.7		)	—			0.4
Total purchased intangible assets	$	646.9	$	(560.3	)	$	(52.7	)	$	33.9

Amortization of intangible assets included in the Condensed Consolidated Statements of Operations

The following table presents the amortization of intangible assets included in the Condensed Consolidated Statements of Operations (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Cost of revenues	$	3.6	$	4.7	$	6.0	$	15.5
Operating expenses:
Sales and marketing	0.8		0.6		1.3		1.4
General and administrative	0.4		0.3		0.8		0.7
Total operating expenses	1.2		0.9		2.1		2.1
Total	$	4.8	$	5.6	$	8.1	$	17.6

Estimated future amortization expense of purchased intangible assets with finite lives

As of June 30, 2016, the estimated future amortization expense of purchased intangible assets with finite lives is as follows (in millions):

Years Ending December 31,	Amount
Remainder of 2016	$	8.1
2017	12.5
2018	10.4
2019	10.2
2020	10.1
Thereafter	17.8
Total	$	69.1