Goodwill and Purchased Intangible Assets, Net (Tables)

12 Months Ended

Apr. 24, 2015

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Goodwill Activity

Goodwill activity is summarized as follows (in millions):

Balance as of April 26, 2013	$	988.1
Goodwill acquired		—
Balance as of April 25, 2014		988.1
Goodwill acquired		39.3
Balance as of April 24, 2015	$	1,027.4

Purchased Intangible Assets, Net

Purchased intangible assets, net are summarized below (in millions):

	April 24, 2015							April 25, 2014
	Gross		Accumulated			Net		Gross		Accumulated			Net
	Assets		Amortization			Assets		Assets		Amortization			Assets
Developed technology	$	312.4	$	(225.2	)	$	87.2	$	283.0	$	(162.6	)	$	120.4
Customer contracts/relationships		5.0		(2.7	)		2.3		9.6		(9.0	)		0.6
Other purchased intangibles		2.9		(2.9	)		—		4.5		(4.0	)		0.5
Total purchased intangible assets	$	320.3	$	(230.8	)	$	89.5	$	297.1	$	(175.6	)	$	121.5

Amortization Expense for Purchased Intangible Assets

Amortization expense for purchased intangible assets is summarized below (in millions):

	Year Ended						Statement of
	April 24, 2015		April 25, 2014		April 26, 2013		Operations Classifications
Developed technology	$	62.6	$	57.1	$	55.9	Cost of revenues
Customer contracts/relationships		0.7		1.0		25.2	Operating expenses
Other purchased intangibles		0.4		1.0		4.7	Operating expenses
Total	$	63.7	$	59.1	$	85.8

Future Amortization Expense Related to Purchased Intangible Assets

As of April 24, 2015, future amortization expense related to purchased intangible assets is as follows (in millions):

Fiscal Year	Amount
2016	$	58.4
2017		13.9
2018		9.4
2019		5.2
2020		2.6
Total	$	89.5