Earnings Per Share

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share

Earnings (Loss) Attributable to Tennant Company Per Share

The computations of Basic and Diluted Earnings (Loss) Attributable to Tennant Company per Share for the years ended December 31 were as follows:

	2019		2018		2017
Numerator:
Net Earnings (Loss) Attributable to Tennant Company	$	45.8	$	33.4	$	(6.2	)
Denominator:
Basic - Weighted Average Shares Outstanding	18,118,486		17,940,438		17,695,390
Effect of dilutive securities	334,659		398,131		—
Diluted - Weighted Average Shares Outstanding	18,453,145		18,338,569		17,695,390
Basic Earnings (Loss) per Share	$	2.53	$	1.86	$	(0.35	)
Diluted Earnings (Loss) per Share	$	2.48	$	1.82	$	(0.35	)

Excluded from the dilutive securities shown above were options to purchase and shares to be paid out under share-based compensation plans of 552,402, 293,356 and 711,212 shares of common stock during 2019, 2018 and 2017, respectively. These exclusions were made if the exercise prices of these options are greater than the average market price of our common stock for the period, if the number of shares we can repurchase under the treasury stock method exceeds the weighted shares outstanding in the options or if we have a net loss, as these effects are anti-dilutive.