Goodwill and Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The following table presents the goodwill activity (in millions):

	Total
December 31, 2014	$	2,981.5
Other	(0.2		)
December 31, 2015	2,981.3
Additions due to business combinations	100.4
December 31, 2016	$	3,081.7

Schedule of Acquired 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 December 31, 2016
Finite-lived intangible assets:
Technologies and patents	$	624.9	$	(504.2	)	$	(49.9	)	$	70.8
Customer contracts, support agreements, and    related relationships	83.6		(70.8		)	(2.8		)	10.0
Other	2.0		(1.6		)	—			0.4
Total intangible assets with finite lives	710.5		(576.6		)	(52.7		)	81.2
Indefinite-lived intangible assets:
IPR&D	49.0		—			—			49.0
Total purchased intangible assets	$	759.5	$	(576.6	)	$	(52.7	)	$	130.2
As of December 31, 2015
Finite-lived intangible assets:
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

Schedule of Acquired Indefinite-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 December 31, 2016
Finite-lived intangible assets:
Technologies and patents	$	624.9	$	(504.2	)	$	(49.9	)	$	70.8
Customer contracts, support agreements, and    related relationships	83.6		(70.8		)	(2.8		)	10.0
Other	2.0		(1.6		)	—			0.4
Total intangible assets with finite lives	710.5		(576.6		)	(52.7		)	81.2
Indefinite-lived intangible assets:
IPR&D	49.0		—			—			49.0
Total purchased intangible assets	$	759.5	$	(576.6	)	$	(52.7	)	$	130.2
As of December 31, 2015
Finite-lived intangible assets:
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

Schedule of Intangible Assets Amortization Included in Consolidated Statements of Operations

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

	Years Ended December 31,
	2016		2015		2014
Cost of revenues	$	11.7	$	24.6	$	30.9
Operating expenses:
Sales and marketing	2.8		2.8		4.2
General and administrative	1.8		1.1		1.2
Total operating expenses	4.6		3.9		5.4
Total	$	16.3	$	28.5	$	36.3

Estimated Future Amortization Expense of Purchased Intangible Assets with Finite Lives

As of December 31, 2016, the estimated future amortization expense of purchased intangible assets with finite lives is as follows (in millions):

Years Ending December 31,	Amount
2017	$	16.7
2018	14.4
2019	14.2
2020	14.1
2021	9.8
Thereafter	12.0
Total	$	81.2