Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Consolidated Income Statements
Service revenue	$ 210,577	$ 199,753	$ 460,702	$ 443,886
Costs and expenses:
Technology and academic services	38,957	38,189	76,469	74,495
Counseling services and support	72,392	66,025	145,741	133,538
Marketing and communication	50,806	49,735	103,700	100,586
General and administrative	10,875	9,854	20,663	19,747
Amortization of intangible assets	2,105	2,105	4,210	4,210
Total costs and expenses	175,135	165,908	350,783	332,576
Operating income	35,442	33,845	109,919	111,310
Interest expense	(7)	(5)	(26)	(5)
Investment interest and other	2,590	344	4,743	549
Income before income taxes	38,025	34,184	114,636	111,854
Income tax expense	9,052	8,622	26,099	28,214
Net income	$ 28,973	$ 25,562	$ 88,537	$ 83,640
Earnings per share:
Basic income per share	$ 0.96	$ 0.80	$ 2.92	$ 2.51
Diluted income per share	$ 0.96	$ 0.80	$ 2.91	$ 2.51
Basic weighted average shares outstanding	30,183	31,800	30,321	33,295
Diluted weighted average shares outstanding	30,287	31,877	30,462	33,381