Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
REVENUE:
Total revenue		$ 195,598	$ 182,959
OPERATING EXPENSES:
Educational services and facilities		33,851	28,088
General and administrative		112,686	106,296
Depreciation and amortization		5,155	4,882
Asset impairment		570
Total operating expenses		152,262	139,266
Operating income		43,336	43,693
OTHER INCOME:
Interest income		3,818	333
Interest expense		(95)	(103)
Miscellaneous expense		(6)	(89)
Total other income		3,717	141
PRETAX INCOME		47,053	43,834
Provision for income taxes		12,569	11,756
NET INCOME		$ 34,484	$ 32,078
NET INCOME PER SHARE - BASIC:		$ 0.51	$ 0.47
NET INCOME PER SHARE - DILUTED:		$ 0.50	$ 0.46
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic		67,235	68,746
Diluted		68,514	69,567
Tuition and Fees, Net [Member]
REVENUE:
Total revenue		$ 193,319	$ 181,327
Other [Member]
REVENUE:
Total revenue	[1]	$ 2,279	$ 1,632

[1] Other revenue primarily includes contract training revenue and miscellaneous non-student related revenue.