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Stock Options And Restricted Stock (Tables)

12 Months Ended

Dec. 31, 2011

Stock Options And Restricted Stock [Abstract]

Schedule Of Restricted Stock Activity

		Number of shares				Weighted-average grant price
Balance, December 31, 2008			122,095			$	124.06
Grants			259,912				216.67
Vested shares			(28,970	)			90.78
Forfeitures			(309	)			162.10
Balance, December 31, 2009			352,728			$	194.39
Grants			51,739				173.09
Vested shares			(51,187	)			106.68
Forfeitures			(11,840	)			176.75
Balance, December 31, 2010			341,440			$	204.89
Grants			74,868				130.96
Vested shares			(17,574	)			131.31
Forfeitures			(17,790	)			155.01
Balance, December 31, 2011			380,944			$	194.26

Schedule Of Stock Option Activity

		Number of shares				Weighted-average exercise price				Weighted- average remaining contractual life (yrs.)				Aggregate intrinsic value(1) (in thousands)
Balance, December 31, 2008			167,084			$	102.98				3.7			$	18,618
Grants			–				–
Exercises			(60,417	)			99.75
Forfeitures			–				–
Balance, December 31, 2009			106,667			$	104.81				2.9			$	11,489
Grants			–				–
Exercises			(6,667	)			67.84
Forfeitures			–				–
Balance, December 31, 2010			100,000			$	107.28				2.1			$	4,494
Grants			–				–
Exercises			–				–
Forfeitures			–				–
Balance, December 31, 2011			100,000			$	107.28				1.1			$	–
Vested, December 31, 2011			100,000			$	107.28				1.1				–
Exercisable, December 31, 2011			100,000			$	107.28				1.1				–

(1) The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (the difference between the Company's closing stock price on December 31 of each year and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on December 31 of that year. The amount of aggregate intrinsic value will change based on the fair market value of the Company's stock.

Summary Of Number Of Shares Exercisable

		Number of shares				Weighted-average exercise price
Exercisable, December 31, 2009			106,667			$	104.81
Exercisable, December 31, 2010			100,000			$	107.28
Exercisable, December 31, 2011			100,000			$	107.28

Schedule Of Information Regarding Share-Based Payment Arrangements

		For the year ended December 31,
		2009				2010				2011
Proceeds from stock options exercised		$	6,027			$	452			$	–
Excess tax benefits (shortfall) related to share-based payment arrangements		$	3,011			$	2,808			$	(569	)
Intrinsic value of stock options exercised(1)		$	6,032			$	1,184			$	–

(1) Intrinsic value of stock options exercised is estimated by taking the difference between the Company's closing stock price on the date of exercise and the exercise price, multiplied by the number of options exercised for each option holder and then aggregated.

Schedule Of Stock-Based Compensation Expense

		2009				2010				2011
Instruction and educational support		$	1,840			$	2,400			$	3,635
Marketing			127				80				65
Admissions advisory			–				–				–
General and administration			8,987				9,507				9,534
Stock-based compensation expense included in operating expense			10,954				11,987				13,234
Tax benefit			4,329				4,735				5,245
Stock-based compensation expense, net of tax		$	6,625			$	7,252			$	7,989

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