Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
REVENUE:
Total revenue	[1]	$ 627,704		$ 581,296		$ 596,435
OPERATING EXPENSES:
Educational services and facilities		101,944		109,897		143,344
General and administrative		430,153		390,707		404,965
Depreciation and amortization	[1]	9,145		9,394		13,990
Total operating expenses		541,242		509,998		562,299
Operating income	[1]	86,462		71,298		34,136
OTHER INCOME (EXPENSE):
Interest income		6,392		3,539		1,900
Interest expense		(167)		(681)		(451)
Miscellaneous income		335		196		665
Total other income		6,560		3,054		2,114
PRETAX INCOME		93,022		74,352		36,250
Provision for income taxes		22,428		18,561		67,125
INCOME (LOSS) FROM CONTINUING OPERATIONS		70,594		55,791		(30,875)
LOSS FROM DISCONTINUED OPERATIONS, net of tax		(612)		(610)		(1,022)
NET INCOME (LOSS)		69,982		55,181		(31,897)
OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
Foreign currency translation adjustments		(41)		(100)		288
Unrealized gain (loss) on investments		683		(34)		(194)
Total other comprehensive income (loss)		642		(134)		94
COMPREHENSIVE INCOME (LOSS)		$ 70,624		$ 55,047		$ (31,803)
NET INCOME (LOSS) PER SHARE - BASIC:
Income (loss) from continuing operations		$ 1.01		$ 0.80		$ (0.45)
Loss from discontinued operations		(0.01)		(0.01)		(0.01)
Net income (loss) per share		1.00	[2]	0.79	[2]	(0.46)
NET INCOME (LOSS) PER SHARE - DILUTED:
Income (loss) from continuing operations		0.98		0.78		(0.45)
Loss from discontinued operations		(0.01)		(0.01)		(0.01)
Net income (loss) per share		$ 0.97	[2]	$ 0.77	[2]	$ (0.46)
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic		70,088		69,598		68,949	[3]
Diluted		72,085		71,482		68,949	[3]
Tuition and Fees [Member]
REVENUE:
Total revenue		$ 625,056		$ 578,545		$ 593,849
Other [Member]
REVENUE:
Total revenue	[4]	$ 2,648		$ 2,751		$ 2,586

[1] The statement of income (loss) and comprehensive income (loss) balances including revenue, operating income (loss), depreciation and amortization and capital expenditures are presented above on a continuing operations basis. Total assets are presented on a consolidated basis including continuing and discontinued operations and do not include intercompany receivable or payable activity between institutions and corporate and investments in subsidiaries.

[2] Basic and diluted earnings per share are calculated independently for each of the quarters presented. Accordingly, the sum of the quarterly earnings per share amounts may not agree with the annual earnings per share amount for the corresponding year.

[3] Due to the fact that we reported a loss from continuing operations for the year ended December 31, 2017, potential common stock equivalents were excluded from the diluted common shares outstanding calculation. Per FASB ASC Topic 260 – Earnings per Share, an entity that reports discontinued operations shall use income or loss from continuing operations as the benchmark for calculating diluted common shares outstanding, and as such, we have zero common stock equivalents since these shares would have an anti-dilutive effect on our net loss per share for the year ended December 31, 2017.

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