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Stock Options, Restricted Stock and Restricted Stock Units (Tables) | 3 Months Ended
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Mar. 31, 2014
Stock Options, Restricted Stock and Restricted Stock Units [Abstract] |
Schedule of restricted stock and restricted stock units activity |
|  | Number of shares or units |  |  | Weighted- average grant price |
Balance, December 31, 2013 |  |  | 487,773 |  |  | $ | 131.51 |
Grants |  |  | 46,064 |  |  | $ | 33.65 |
Vested shares |  |  | (46,963 | ) |  | $ | 182.23 |
Forfeitures |  |  | (227 | ) |  | $ | 132.23 |
Balance, March 31, 2014 |  |  | 486,647 |  |  | $ | 124.65 |
Schedule of stock option activity and other stock option information |
| Number of shares |  |  | Weighted-average exercise price |  |  | Weighted-average remaining contractual life (years) |  |  | Aggregate intrinsic value(1) (in thousands) |
Balance, December 31, 2013 |  |  | 100,000 |  |  | $ | 51.95 |  |  |  | 7.0 |  |  | $ | — |
Grants |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Exercises |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Forfeitures/Expirations |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Balance, March 31, 2014 |  |  | 100,000 |  |  | $ | 51.95 |  |  |  | 6.8 |  |  | $ | — |
Exercisable, March 31, 2014 |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |
Schedule of stock-based compensation expense |
|  | For the three months ended March 31, |
|  | 2013 |  |  | 2014 |
Instruction and educational support |  | $ | 1,097 |  |  | $ | 434 |
Marketing |  |  | — |  |  |  | — |
Admissions advisory |  |  | — |  |  |  | — |
General and administration |  |  | 1,153 |  |  |  | 1,527 |
Stock-based compensation expense included in operating expense |  |  | 2,250 |  |  |  | 1,961 |
Tax benefit |  |  | 895 |  |  |  | 781 |
Stock-based compensation expense, net of income tax |  | $ | 1,355 |  |  | $ | 1,180 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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