Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Revenue
Product revenue	$ 1,540,075	$ 1,498,070	$ 1,474,674
Service revenue	697,144	659,516	630,514
Total revenue	2,237,219	2,157,586	2,105,188
Cost of product revenue	805,345	783,584	762,989
Cost of service revenue	427,266	397,860	380,670
Selling, general and administrative expenses	659,335	581,898	627,370
Research and development expenses	121,141	132,400	131,835
Restructuring and contract termination charges, net	13,390	33,892	25,051
Asset impairment	0	158	74,153
Operating income from continuing operations	210,742	227,794	103,120
Interest and other expense, net	41,139	64,110	47,956
Income from continuing operations before income taxes	169,603	163,684	55,164
Provision for (benefit from) income taxes	8,437	(10,583)	(16,125)
Income from continuing operations	161,166	174,267	71,289
Loss from discontinued operations before income taxes	(4,959)	(10,352)	(4,577)
(Loss) gain on disposition of discontinued operations before income taxes	(260)	(1,810)	2,405
Benefit from income taxes on discontinued operations and dispositions	(1,831)	(5,107)	(823)
Net loss from discontinued operations and dispositions	(3,388)	(7,055)	(1,349)
Net income	$ 157,778	$ 167,212	$ 69,940
Basic earnings per share:
Continuing operations	$ 1.43	$ 1.55	$ 0.63
Discontinued operations	$ (0.03)	$ (0.06)	$ (0.01)
Net Income	$ 1.40	$ 1.49	$ 0.61
Diluted earnings per share:
Continuing operations	$ 1.42	$ 1.54	$ 0.62
Discontinued operations	$ (0.03)	$ (0.06)	$ (0.01)
Net income	$ 1.39	$ 1.47	$ 0.61