Quarterly report pursuant to Section 13 or 15(d)

Benefit Plans - Fair Value of Options Granted (Details)

v3.20.1
Benefit Plans - Fair Value of Options Granted (Details)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Retirement Benefits [Abstract]    
Risk-free interest rate 1.40% 2.50%
Expected life of options — years 3 years 9 months 25 days 3 years 4 months 9 days
Expected stock price volatility 25.00% 26.00%
Expected dividend yield 0.70% 0.80%