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Per Common Share Information
 3 Months Ended
Mar. 31, 2022
Earnings Per Share [Abstract]  
Per Common Share Information Per Common Share InformationDiluted earnings per common share is calculated using 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 5.0 million shares and 5.2 million shares for the quarters 2022 and 2021, respectively. Share-based compensation awards that would have been antidilutive, and therefore were not included in the calculation of diluted weighted-average shares, totaled 1.7 million shares and 3.6 million shares for the quarters 2022 and 2021, respectively.