Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
REVENUE:
Total revenue		$ 179,923	$ 168,420	$ 562,085	$ 519,063
OPERATING EXPENSES:
Educational services and facilities		33,502	30,149	100,101	85,506
General and administrative		92,054	103,882	305,328	311,510
Depreciation and amortization		3,914	5,065	13,438	14,856
Asset impairment		7,380		8,715	228
Total operating expenses		136,850	139,096	427,582	412,100
Operating income		43,073	29,324	134,503	106,963
OTHER INCOME:
Interest income		5,210	2,270	13,559	3,697
Interest expense		(97)	(96)	(288)	(298)
Miscellaneous (expense) income		(98)	(206)	21,970	(521)
Total other income		5,015	1,968	35,241	2,878
PRETAX INCOME		48,088	31,292	169,744	109,841
Provision for income taxes		6,781	9,225	39,280	29,929
NET INCOME		$ 41,307	$ 22,067	$ 130,464	$ 79,912
NET INCOME PER SHARE - BASIC:		$ 0.63	$ 0.33	$ 1.95	$ 1.17
NET INCOME PER SHARE - DILUTED:		$ 0.62	$ 0.32	$ 1.92	$ 1.16
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic		65,634	67,506	66,758	68,193
Diluted		67,103	68,550	68,072	69,131
Tuition and Fees, Net [Member]
REVENUE:
Total revenue		$ 178,259	$ 166,437	$ 556,098	$ 513,660
Other [Member]
REVENUE:
Total revenue	[1]	$ 1,664	$ 1,983	$ 5,987	$ 5,403

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