Consolidated Income Statements (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Revenue:
Product and maintenance	$ 1,357,934	$ 1,212,429	$ 1,033,143
Services	102,182	113,995	116,692
Total revenue	1,460,116	1,326,424	1,149,835
Costs and expenses:
Cost of product and maintenance	132,245	118,516	113,658
Cost of service	67,956	72,607	81,498
Marketing and sales	378,157	342,278	323,798
Research and development	534,022	454,085	400,745
General and administrative	121,314	112,076	92,863
Amortization of acquired intangibles	19,416	15,077	16,536
Restructuring and other charges	17,999	113	360
Total costs and expenses	1,271,109	1,114,752	1,029,458
Income from operations	189,007	211,672	120,377
Interest expense	(37,581)	(34,742)	(43,025)
Other income, net	7,570	11,341	18,074
Income before provision (benefit) for income taxes	158,996	188,271	95,426
Provision (benefit) for income taxes	(5,247)	(251,677)	23,197
Net income	$ 164,243	$ 439,948	$ 72,229
Net income per share - basic (in usd per share)	$ 0.59	$ 1.63	$ 0.27
Net income per share - diluted (in usd per share)	$ 0.56	$ 1.57	$ 0.27
Weighted average common shares outstanding - basic (shares)	277,796	270,479	263,892
Weighted average common shares outstanding - diluted (shares)	294,564	280,667	270,816