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Per Common Share Information
 6 Months Ended
Jun. 30, 2023
Earnings Per Share [Abstract]  
Per Common Share Information Per Common Share InformationDiluted earnings per common share is calculated as net income divided by diluted weighted-average shares. Diluted weighted-average shares include weighted-average shares outstanding plus the dilutive effect of share-based compensation, calculated using the treasury stock method, of 4.7 million shares and 4.5 million shares for the quarters ended 2023 and 2022, respectively, and 4.6 million shares and 4.8 million shares for the six months ended 2023 and 2022, respectively. Share-based compensation awards that would have been antidilutive, and therefore were not included in the calculation of diluted weighted-average shares, totaled 1.2 million shares and 1.6 million shares for the quarters ended 2023 and 2022, respectively, and 2.1 million shares and 1.6 million shares for the six months ended 2023 and 2022, respectively.