Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule Of Stock-Based Compensation Expense

Stock-based compensation is classified in the consolidated statements of income in the same expense line items as cash compensation. Amounts recorded as expense in the consolidated statements of income are as follows (in thousands):

	Year Ended December 31,
	2018		2017		2016
Cost of revenue	$	3,270	$	7,686	$	6,213
Technology and development	2,185		2,391		2,448
Sales and marketing	3,000		2,936		3,004
General and administrative	9,633		12,636		15,515
Total	$	18,088	$	25,649	$	27,180

Summary Of Weighted-Average Fair Value Of Stock Options Granted

The following table summarizes the weighted-average fair value of stock options granted. There were no stock options granted in 2018.

	Year Ended December 31,
	2017		2016
Stock options granted (in thousands)	632		825
Weighted-average fair value at date of grant	$	26.22	$	18.38

Summary Of Stock Option Activity

Stock option activity for the year ended December 31, 2018 is as follows (shares in thousands):

	Shares		Weighted-average exercise price		Remaining contractual term (years)	Aggregate intrinsic value (dollars in thousands)
Outstanding at December 31, 2017	2,478		$	47.24	7.22	$	42,324
Granted	—		—
Exercised	(54	)	26.10
Forfeited	(205	)	60.70
Outstanding as of December 31, 2018	2,219		$	46.50	5.11	$	4,321
Vested and expected to vest at December 31, 2018	2,187		$	46.30	5.08	$	4,323
Exercisable at December 31, 2018	1,849		$	43.74	4.61	$	4,323

Schedule Of Weighted Average Assumptions

The Company calculated the fair value of each option award on the date of grant using the Black-Scholes option pricing model with the following weighted-average assumptions. There were no stock options granted during 2018.

	Year Ended December 31,
	2017		2016
Expected volatility	39.79	%	42.63	%
Risk-free interest rate	1.86	%	1.17	%
Expected term (in years)	4.74		4.87
Dividend yield	—	%	—	%

Summary Of Restricted Stock Units

The following table summarizes information about RSUs issued to officers, directors, and employees under the 2010 Plan:

					Weighted-average grant date fair value
	Service-based RSUs		Performance-based RSUs		Service-based RSUs		Performance-based RSUs
	(shares in thousands)
Unvested at December 31, 2017	304		725		$	61.61	$	60.21
Granted	—		—		—		—
Vested	(105	)	(257	)	60.40		58.98
Forfeitures	(35	)	(268	)	64.38		61.57
Unvested at December 31, 2018	164		200		$	61.79	$	59.76