Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Schedule of Fair Value of Options Granted

The following table summarizes the weighted-average assumptions used to compute the fair value of options granted to employees, members of our board of directors and non-employees:

	For the Three Months Ended June 30,		For the Six Months Ended June 30,
	2021	2020	2021	2020
Risk-free interest rate	0.3%	0.3%	0.6%	1.3%
Expected life of options — years	2.71	3.80	6.06	3.82
Expected stock price volatility	34%	36%	33%	25%
Expected dividend yield	1.0%	0.9%	1.0%	0.7%

Schedule of Stock Options Activity Under Share-based Payment Plans

The following table summarizes stock option activity under our share-based plans for the six months ended June 30, 2021:

	Options	Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Outstanding as of December 31, 2020	184	$	4.73
Granted	53	$	6.14
Exercised	(55)	$	3.98
Forfeited, cancelled or expired	(2)	$	6.33
Outstanding as of June 30, 2021	180	$	5.36	5.85	$	225
Exercisable as of June 30, 2021	101	$	4.67	4.57	$	195

Schedule of Restricted Stock Unit and Stock Award Activity

The following table summarizes the restricted stock unit, including PRSU, activity under our share-based plans for the six months ended June 30, 2021:

	Shares	Grant Date Fair Value Per Share
Nonvested as of December 31, 2020	75	$	6.06
Granted	13	$	6.03
Vested	(9)	$	6.05
Forfeited	(5)	$	6.05
Nonvested as of June 30, 2021	74	$	6.06