Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Revenues:
System sales	$ 224,345	$ 202,632	$ 665,595	$ 602,037
Support, maintenance and services	593,068	508,520	1,738,664	1,461,723
Reimbursed travel	22,736	16,678	72,413	51,660
Total revenues	840,149	727,830	2,476,672	2,115,420
Costs and expenses:
Cost of system sales	65,520	64,389	211,939	217,580
Cost of support, maintenance and services	51,809	38,510	147,181	103,366
Cost of reimbursed travel	22,736	16,678	72,413	51,660
Sales and client service	346,417	304,665	1,020,552	853,213
Software development (Includes amortization of $25,372 and $75,410 for the three and nine months ended September 27, 2014; and $24,056 and $69,366 for the three and nine months ended September 28, 2013)	97,026	82,998	285,897	246,343
General and administrative	68,487	51,352	180,900	150,995
Total costs and expenses	651,995	558,592	1,918,882	1,623,157
Operating earnings	188,154	169,238	557,790	492,263
Other income, net	2,181	3,509	7,908	9,286
Earnings before income taxes	190,335	172,747	565,698	501,549
Income taxes	(61,333)	(57,403)	(188,137)	(163,258)
Net earnings	$ 129,002	$ 115,344	$ 377,561	$ 338,291
Basic earnings per share	$ 0.38	$ 0.34	$ 1.10	$ 0.98
Diluted earnings per share	$ 0.37	$ 0.33	$ 1.08	$ 0.96
Basic weighted average shares outstanding	341,188	342,992	342,254	343,681
Diluted weighted average shares outstanding	349,326	351,449	350,468	352,332