Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues	$ 1,467,976	$ 1,368,673	$ 4,312,509	$ 4,110,763
Costs and expenses:
Costs of revenue	251,111	231,889	743,092	698,268
Sales and client service	651,010	625,402	2,004,263	1,907,138
Software development (Includes amortization of $66,222 and $196,319 for the three and nine months ended September 30, 2021, respectively; and $61,578 and $183,786 for the three and nine months ended September 30, 2020, respectively)	202,663	186,826	636,590	551,101
General and administrative	121,395	116,816	390,067	391,000
Amortization of acquisition-related intangibles	16,874	12,789	45,956	43,031
Total costs and expenses	1,243,053	1,173,722	3,819,968	3,590,538
Gain on sale of businesses	0	216,869	0	216,869
Operating earnings	224,923	411,820	492,541	737,094
Other income, net	(5,070)	48,020	(5,542)	78,247
Earnings before income taxes	219,853	459,840	486,999	815,341
Income taxes	(44,058)	(103,164)	(106,245)	(176,758)
Net earnings	$ 175,795	$ 356,676	$ 380,754	$ 638,583
Basic earnings per share	$ 0.59	$ 1.17	$ 1.27	$ 2.08
Diluted earnings per share	$ 0.59	$ 1.16	$ 1.25	$ 2.07
Basic weighted average shares outstanding	296,202	305,759	300,526	306,759
Diluted weighted average shares outstanding	298,714	308,366	303,423	309,124