Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues	$ 1,387,778	$ 1,411,741
Costs and expenses:
Costs of revenue	230,656	254,416
Sales and client service	622,176	636,649
Software development (Includes amortization of $64,850 and $61,011, respectively)	192,327	185,320
General and administrative	112,365	139,852
Amortization of acquisition-related intangibles	12,196	17,128
Total costs and expenses	1,169,720	1,233,365
Operating earnings	218,058	178,376
Other income, net	1,206	5,595
Earnings before income taxes	219,264	183,971
Income taxes	(47,012)	(36,812)
Net earnings	$ 172,252	$ 147,159
Basic earnings per share	$ 0.57	$ 0.48
Diluted earnings per share	$ 0.56	$ 0.47
Basic weighted average shares outstanding	304,731	309,657
Diluted weighted average shares outstanding	308,031	312,240
Software development, amortization	$ 64,850	$ 61,011