Unaudited Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
REVENUE:
Total revenue		$ 142,036	$ 146,222	$ 290,101	$ 308,331
OPERATING EXPENSES:
Educational services and facilities		30,290	36,406	57,236	76,579
General and administrative		98,340	96,836	196,348	205,081
Depreciation and amortization		2,103	3,876	4,685	7,786
Total operating expenses		130,733	137,118	258,269	289,446
Operating income		11,303	9,104	31,832	18,885
OTHER INCOME:
Interest income		742	464	1,376	854
Interest expense		(106)	(113)	(215)	(226)
Miscellaneous (expense) income		(135)	253	193	293
Total other income		501	604	1,354	921
PRETAX INCOME		11,804	9,708	33,186	19,806
Provision for income taxes		2,940	5,045	6,438	9,546
INCOME FROM CONTINUING OPERATIONS		8,864	4,663	26,748	10,260
LOSS FROM DISCONTINUED OPERATIONS, net of tax		(113)	(377)	(495)	(797)
NET INCOME		8,751	4,286	26,253	9,463
OTHER COMPREHENSIVE (LOSS) INCOME, net of tax:
Foreign currency translation adjustments		(168)	222	(82)	263
Unrealized gain (loss) on investments		108	11	(110)	34
Total other comprehensive (loss) income		(60)	233	(192)	297
COMPREHENSIVE INCOME		$ 8,691	$ 4,519	$ 26,061	$ 9,760
NET INCOME (LOSS) PER SHARE - BASIC:
Income from continuing operations		$ 0.13	$ 0.07	$ 0.39	$ 0.15
Loss from discontinued operations			(0.01)	(0.01)	(0.01)
Net income per share		0.13	0.06	0.38	0.14
NET INCOME (LOSS) PER SHARE - DILUTED:
Income from continuing operations		0.12	0.07	0.38	0.14
Loss from discontinued operations			(0.01)	(0.01)	(0.01)
Net income per share		$ 0.12	$ 0.06	$ 0.37	$ 0.13
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic		69,668	69,025	69,443	68,803
Diluted		71,562	70,884	71,239	70,590
Tuition and Fees [Member]
REVENUE:
Total revenue		$ 141,344	$ 145,507	$ 288,854	$ 306,884
Other [Member]
REVENUE:
Total revenue	[1]	$ 692	$ 715	$ 1,247	$ 1,447

[1] Other revenue primarily includes contract training revenue and bookstore and laptop sales.