Consolidated Statements Of Income And Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
REVENUE:
Tuition and registration fees	$ 326,464	$ 417,420	$ 1,112,950	$ 1,396,557
Other	6,293	10,991	22,910	48,432
Total revenue	332,757	428,411	1,135,860	1,444,989
OPERATING EXPENSES:
Educational services and facilities	133,206	152,727	431,739	476,370
General and administrative	227,369	233,647	667,618	695,313
Depreciation and amortization	20,429	22,156	60,555	62,563
Goodwill and asset impairment			85,661	2,676
Total operating expenses	381,004	408,530	1,245,573	1,236,922
Operating (loss) income	(48,247)	19,881	(109,713)	208,067
OTHER INCOME (EXPENSE):
Interest income	686	263	1,426	749
Interest expense	(22)	(44)	(87)	(120)
Miscellaneous income	77	183		1,968
Total other income	741	402	1,339	2,597
PRETAX (LOSS) INCOME	(47,506)	20,283	(108,374)	210,664
(Benefit from) provision for income taxes	(16,675)	6,215	(30,109)	72,582
(LOSS) INCOME FROM CONTINUING OPERATIONS	(30,831)	14,068	(78,265)	138,082
(LOSS) INCOME FROM DISCONTINUED OPERATIONS, net of tax	(2,315)	(3,434)	(3,039)	940
NET (LOSS) INCOME	(33,146)	10,634	(81,304)	139,022
OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
Foreign currency translation adjustments	743	(11,761)	(3,553)	(269)
Unrealized (losses) gains on investments	(206)	(6)	(326)	40
Total other comprehensive income (loss)	537	(11,767)	(3,879)	(229)
COMPREHENSIVE (LOSS) INCOME	$ (32,609)	$ (1,133)	$ (85,183)	$ 138,793
NET (LOSS) INCOME PER SHARE-BASIC:
(Loss) income from continuing operations	$ (0.47)	$ 0.19	$ (1.18)	$ 1.84
(Loss) income from discontinued operations	$ (0.03)	$ (0.05)	$ (0.05)	$ 0.02
Net (loss) income per share	$ (0.50)	$ 0.14	$ (1.23)	$ 1.86
NET (LOSS) INCOME PER SHARE-DILUTED:
(Loss) income from continuing operations	$ (0.47)	$ 0.19	$ (1.18)	$ 1.83
(Loss) income from discontinued operations	$ (0.03)	$ (0.05)	$ (0.05)	$ 0.01
Net (loss) income per share	$ (0.50)	$ 0.14	$ (1.23)	$ 1.84
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic	66,100	73,582	66,325	74,858
Diluted	66,100	74,058	66,325	75,518