Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Revenues:
System sales	$ 325,084	$ 224,345	$ 899,762	$ 665,595
Support, maintenance and services	783,878	593,068	2,295,075	1,738,664
Reimbursed travel	18,925	22,736	55,136	72,413
Total revenues	1,127,887	840,149	3,249,973	2,476,672
Costs and expenses:
Cost of system sales	105,760	65,520	309,761	211,939
Cost of support, maintenance and services	65,898	51,809	186,668	147,181
Cost of reimbursed travel	18,925	22,736	55,136	72,413
Sales and client service	465,881	346,417	1,349,498	1,020,552
Software development (Includes amortization of $29,743 and $88,450 for the three and nine months ended October 3, 2015; and $25,372 and $75,410 for the three and nine months ended September 27, 2014)	132,814	97,026	398,536	285,897
General and administrative	98,705	64,877	329,061	170,834
Amortization of acquisition-related intangibles	24,550	3,610	67,311	10,066
Total costs and expenses	912,533	651,995	2,695,971	1,918,882
Operating earnings	215,354	188,154	554,002	557,790
Other income (expense), net	317	2,181	(554)	7,908
Earnings before income taxes	215,671	190,335	553,448	565,698
Income taxes	(68,389)	(61,333)	(180,194)	(188,137)
Net earnings	$ 147,282	$ 129,002	$ 373,254	$ 377,561
Basic earnings per share	$ 0.43	$ 0.38	$ 1.09	$ 1.10
Diluted earnings per share	$ 0.42	$ 0.37	$ 1.06	$ 1.08
Basic weighted average shares outstanding	344,040	341,188	343,933	342,254
Diluted weighted average shares outstanding	351,364	349,326	351,891	350,468