Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Stock-Based Compensation

Schedule of stock-based compensation fair value assumptions

	2019		2018
Expected life (years)	3.0		3.0
Expected stock price volatility	23.3	%	24.1	%
Expected dividend yield	1.1	%	1.0	%
Risk-free interest rate	2.5	%	2.4	%