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Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2013
Stockholders' Equity [Abstract]  
Schedule of restricted stock activity
 
   
Number
of shares
or units
   
Weighted-
average grant
price
 
Balance, December 31, 2012
   
434,439
   
$
178.88
 
Grants
   
225,741
   
$
57.90
 
Vested shares
   
(51,916
)
 
$
164.22
 
Forfeitures
   
(65,935
)
 
$
183.06
 
Balance, September 30, 2013
   
542,329
   
$
129.42
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, 2012
   
100,000
   
$
107.28
     
0.1
   
$
 
Grants
   
100,000
     
51.95
                 
Forfeitures/Expirations
   
(100,000
)
   
107.28
                 
Balance, September 30, 2013
   
100,000
   
$
51.95
     
7.3
   
$
 
Exercisable, September 30, 2013
   
   
$
     
     
Schedule of stock-based compensation expense
 
   
For the three months
ended September 30,
   
For the nine months
ended September 30,
 
   
2012
   
2013
   
2012
   
2013
 
Instruction and educational support
 
$
976
   
$
815
   
$
2,538
   
$
2,756
 
Marketing
   
     
     
     
 
Admissions advisory
   
     
     
     
 
General and administration
   
2,551
     
2,351
     
6,820
     
5,642
 
Stock-based compensation expense included in operating expense
   
3,527
     
3,166
     
9,358
     
8,398
 
Tax benefit
   
1,393
     
1,260
     
3,696
     
3,342
 
Stock-based compensation expense, net of income tax
 
$
2,134
   
$
1,906
   
$
5,662
   
$
5,056