Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Valuation Assumptions) (Details)

v3.21.1
Stock-Based Compensation (Valuation Assumptions) (Details) - $ / shares
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Share-based Payment Arrangement [Abstract]      
Grant date fair value (in dollars per share) $ 19.58   $ 8.59
Grant date strike price (in dollars per share) $ 65.21   $ 53.40
Expected volatility 40.18% 24.30%  
Expected life 4 years 3 months 4 years 3 months  
Risk-free interest rate 0.40% 1.21%  
Projected dividend yield 0.98% 2.40%