Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Revenues:
System sales	$ 319,856	$ 279,354
Support, maintenance and services	918,238	839,638
Reimbursed travel	22,392	19,143
Total revenues	1,260,486	1,138,135
Costs and expenses:
Cost of system sales	100,409	89,225
Cost of support, maintenance and services	76,192	67,225
Cost of reimbursed travel	22,392	19,143
Sales and client service	560,200	501,827
Software development (Includes amortization of $40,561 and $32,614, respectively)	145,901	133,532
General and administrative	88,392	90,134
Amortization of acquisition-related intangibles	22,874	21,601
Total costs and expenses	1,016,360	922,687
Operating earnings	244,126	215,448
Other income (expense), net	(1,116)	1,681
Earnings before income taxes	243,010	217,129
Income taxes	(69,797)	(66,769)
Net earnings	$ 173,213	$ 150,360
Basic earnings per share	$ 0.52	$ 0.44
Diluted earnings per share	$ 0.52	$ 0.43
Basic weighted average shares outstanding	329,973	339,518
Diluted weighted average shares outstanding	336,190	345,900