Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Costs Related to Company's Stock-based Compensation Plan

The following costs related to the Company’s stock-based compensation plan are included in the unaudited consolidated statements of income:

	Three months ended June 30,				Six months ended June 30,
	2022		2021		2022		2021
Cost of revenues	$	3,131	$	1,854	$	5,772	$	3,390
General and administrative expenses	5,305		4,608		9,700		7,906
Selling and marketing expenses	4,904		3,608		9,092		6,606
Total	$	13,340	$	10,070	$	24,564	$	17,902
Income tax benefit related to share-based compensation, including excess tax benefits	$	3,216	$	2,074	$	6,022	$	4,432

Schedule of Stock Options Activity

Stock option activity under the Company’s stock-based compensation plans is shown below:

	Number of Options	Weighted-Average Exercise Price		Aggregate Intrinsic Value		Weighted-Average Remaining Contractual Life (Years)
Outstanding at December 31, 2021	3,093	$	27.62	$	362	2.0
Granted	—	—		—		—
Exercised	—	—		—		—
Forfeited	—	—		—		—
Outstanding at June 30, 2022	3,093	$	27.62	$	370	1.5
Vested and exercisable at June 30, 2022	3,093	$	27.62	$	370	1.5

Schedule of Restricted Stock Unit Activity

Restricted stock unit activity under the Company’s stock-based compensation plans is shown below:

	Restricted Stock Units (Others)			Restricted Stock Units (SMP)
	Number	Weighted-Average Fair Value		Number	Weighted-Average Fair Value
Outstanding at December 31, 2021*	982,187	$	81.61	—	$	—
Granted	349,748	120.49		52,636	124.76
Vested	(298,830)	73.89		—	—
Forfeited	(35,723)	95.11		—	—
Outstanding at June 30, 2022*	997,382	$	97.08	52,636	$	124.76

* As of June 30, 2022 and December 31, 2021 restricted stock units vested for which the underlying common stock is yet to be issued are 174,490 and 162,481 respectively.

Schedule of Performance Based Stock Awards Activity

Performance restricted stock unit activity under the Company’s stock plans is shown below:

	Revenue Based PRSUs			Market Condition Based PRSUs
	Number	Weighted Average Fair Value		Number	Weighted Average Fair Value
Outstanding at December 31, 2021	58,864	$	78.29	172,042	$	113.74
Granted	52,702	119.98		79,001	155.67
Vested	—	—		—	—
Forfeited	(352)	119.98		(528)	155.67
Outstanding at June 30, 2022	111,214	$	97.91	250,515	$	126.88