(in thousands, except per share amounts) | 2021 | 2020 | 2019 | 2018 | 2017 | |||||||||||||||||||||||||||
Net income for common stock | $ | 246,166 | $ | 197,824 | $ | 217,882 | $ | 201,774 | $ | 165,297 | ||||||||||||||||||||||
Weighted-average number of common shares outstanding | 109,282 | 109,140 | 108,949 | 108,855 | 108,749 | |||||||||||||||||||||||||||
Adjusted weighted-average number of common shares outstanding | 109,580 | 109,356 | 109,407 | 109,146 | 108,933 | |||||||||||||||||||||||||||
Basic earnings per common share | $ | 2.25 | $ | 1.81 | $ | 2.00 | $ | 1.85 | $ | 1.52 | ||||||||||||||||||||||
Diluted earnings per common share | $ | 2.25 | $ | 1.81 | $ | 1.99 | $ | 1.85 | $ | 1.52 |