Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
REVENUE:
Total revenue		$ 183,638	$ 170,994
OPERATING EXPENSES:
Educational services and facilities		28,974	26,911
General and administrative		110,045	103,529
Depreciation and amortization		4,002	2,639
Asset impairment			612
Total operating expenses		143,021	133,691
Operating income		40,617	37,303
OTHER INCOME:
Interest income		359	1,487
Interest expense		(109)	(41)
Miscellaneous income (expense)		142	(13)
Total other income		392	1,433
PRETAX INCOME		41,009	38,736
Provision for income taxes		10,245	9,604
INCOME FROM CONTINUING OPERATIONS		30,764	29,132
LOSS FROM DISCONTINUED OPERATIONS, net of tax		(11)	(26)
NET INCOME		$ 30,753	$ 29,106
NET INCOME PER SHARE - BASIC:		$ 0.44	$ 0.42
NET INCOME PER SHARE - DILUTED:		$ 0.43	$ 0.41
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic		70,149	69,839
Diluted		71,482	71,714
Tuition and Fees [Member]
REVENUE:
Total revenue		$ 182,831	$ 170,394
Other [Member]
REVENUE:
Total revenue	[1]	$ 807	$ 600

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