Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Revenues:
System sales	$ 902,799	$ 706,714	$ 550,792
Support, maintenance and services	1,707,329	1,451,747	1,266,977
Reimbursed travel	55,308	44,692	32,453
Total revenues	2,665,436	2,203,153	1,850,222
Costs and expenses:
Cost of system sales	427,456	296,561	221,055
Cost of support, maintenance and services	125,433	100,419	66,848
Cost of reimbursed travel	55,308	44,692	32,453
Sales and client service	1,020,640	869,962	767,152
Software development (Includes amortization of $81,731, $79,098 and $68,994, respectively)	301,370	286,801	272,851
General and administrative	163,567	144,920	130,530
Total costs and expenses	2,093,774	1,743,355	1,490,889
Operating earnings	571,662	459,798	359,333
Other income, net	16,046	9,896	2,879
Earnings before income taxes	587,708	469,694	362,212
Income taxes	(190,476)	(163,067)	(124,940)
Net earnings	$ 397,232	$ 306,627	$ 237,272
Basic earnings per share	$ 2.32	$ 1.82	$ 1.44
Diluted earnings per share	$ 2.26	$ 1.76	$ 1.39
Basic weighted average shares outstanding	170,931	168,634	164,916
Diluted weighted average shares outstanding	175,697	173,867	170,847