Income Attributable to Tennant Company Per Share (Tables)

3 Months Ended

Mar. 31, 2026

Earnings Per Share [Abstract]

Schedule of Computations of Basic and Diluted Earnings per Share

The computations of basic and diluted earnings per share were as follows:

	Three Months Ended March 31,
	2026		2025
Numerator:
Net income	$	0.2	$	13.1
Denominator:
Basic - weighted average shares outstanding	17,558,556		18,702,438
Effect of dilutive securities	246,047		257,569
Diluted - weighted average shares outstanding	17,804,603		18,960,007
Basic earnings per share	$	0.01	$	0.70
Diluted earnings per share	$	0.01	$	0.69