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Share-Based Compensation Plans (Tables)

12 Months Ended

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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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.

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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.

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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.

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