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Income Attributable to Tennant Company Per Share (Tables)
12 Months Ended
Dec. 31, 2024
Earnings Per Share [Abstract]  
Schedule of Computations of Basic and Diluted Earnings per Share
The computations of basic and diluted earnings attributable to Tennant Company per share for the years ended December 31 were as follows:
202420232022
Numerator:
Net income$83.7 $109.5 $66.3 
Denominator:
Basic - weighted average shares outstanding18,786,87118,509,52318,494,356
Effect of dilutive securities309,267274,110202,899
Diluted - weighted average shares outstanding19,096,13818,783,63318,697,255
Basic earnings per share$4.46 $5.92 $3.58 
Diluted earnings per share$4.38 $5.83 $3.55