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Share-Based Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2018
Share-Based Compensation Plans |
Schedule of Activity Related to Restricted Stock Granted under Company's Incentive Plan |
|  |  |  | Weighted Average
|  | Total |  | Grant Date
|  | Shares |  | Fair Value per Share
Outstanding as of December 31, 2015 |  | 1,056 |  | $ | 34.30
Granted |  | 275 |  | $ | 44.46
Vested |  | (329) |  | $ | 30.56
Forfeited, canceled or expired |  | (9) |  | $ | 37.94
Outstanding as of December 31, 2016 |  | 993 |  | $ | 38.32
Granted |  | 192 |  | $ | 70.44
Vested |  | (375) |  | $ | 32.46
Forfeited, canceled or expired |  | (34) |  | $ | 44.51
Outstanding as of December 31, 2017 |  | 776 |  | $ | 49.16
Granted |  | 163 |  | $ | 92.34
Vested |  | (384) |  | $ | 65.57
Forfeited, canceled or expired |  | (95) |  | $ | 71.60
Outstanding as of December 31, 2018 |  | 460 |  | $ | 63.28
Schedule of Activity Related to Stock Options Granted under Company's Incentive Plan |
|  | Summary of Stock Options Outstanding
|  |  |  | Weighted |  | Weighted |  |  |
|  |  |  | Average |  | Average |  |  |
|  |  |  | Exercise |  | Remaining |  | Aggregate
|  | Total |  | Price per |  | Contractual |  | Intrinsic
|  | Shares |  | Share |  | Term (Years) |  | Value ($)(1)
Outstanding as of December 31, 2015 |  | 2,220 |  | $ | 14.71 |  |  |  |  |
Granted |  | — |  | $ | — |  |  |  |  |
Exercised |  | (946) |  | $ | 13.97 |  |  |  |  |
Forfeited, canceled or expired |  | (2) |  | $ | 19.23 |  |  |  |  |
Outstanding as of December 31, 2016 |  | 1,272 |  | $ | 15.26 |  |  |  |  |
Granted |  | — |  | $ | — |  |  |  |  |
Exercised |  | (576) |  | $ | 12.79 |  |  |  |  |
Forfeited, canceled or expired |  | (2) |  | $ | 16.35 |  |  |  |  |
Outstanding as of December 31, 2017 |  | 694 |  | $ | 17.31 |  |  |  |  |
Granted |  | — |  | $ | — |  |  |  |  |
Exercised |  | (250) |  | $ | 18.47 |  |  |  |  |
Forfeited, canceled or expired |  | — |  | $ | — |  |  |  |  |
Outstanding as of December 31, 2018 |  | 444 |  | $ | 16.66 |  | 1.95 |  | $ | 35,222
Exercisable as of December 31, 2018 |  | 444 |  | $ | 16.66 |  | 1.95 |  | $ | 35,222
| (1) |  | Aggregate intrinsic value represents the value of the Company’s closing stock price on December 31, 2018 ($96.14) in excess of the exercise price multiplied by the number of options outstanding or exercisable.
Schedule of Share-Based Compensation Expense |
|  | 2018 |  | 2017 |  | 2016 |
Technical and academic services |  | $ | 1,585 |  | $ | 1,555 |  | $ | 1,498 |
Counseling support and services |  |  | 4,926 |  |  | 4,700 |  |  | 4,711 |
Marketing and communication |  |  | 48 |  |  | 26 |  |  | 20 |
General and administrative |  |  | 3,355 |  |  | 3,402 |  |  | 3,430 |
University related expenses |  |  | 9,594 |  |  | 3,005 |  |  | 2,617 |
Share-based compensation expense included in operating expenses |  |  | 19,508 |  |  | 12,688 |  |  | 12,276 |
Tax effect of share-based compensation |  |  | (4,877) |  |  | (5,075) |  |  | (4,910) |
Share-based compensation expense, net of tax |  | $ | 14,631 |  | $ | 7,613 |  | $ | 7,366 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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