Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net sales	$ 258.1	$ 263.3
Cost of sales	159.2	150.0
Gross profit	98.9	113.3
Selling and administrative expense	76.6	79.4
Research and development expense	7.7	7.4
Gain on sale of business	0.0	(9.8)
Operating income	14.6	36.3
Interest expense, net	(0.3)	(3.9)
Net foreign currency transaction gain	0.6	0.5
Other (expense) income, net	(0.2)	0.1
Income before income taxes	14.7	33.0
Income tax expense	4.4	7.3
Net income attributable to Tennant Company	$ 10.3	$ 25.7
Net income attributable to Tennant Company per share
Basic (in dollars per share)	$ 0.56	$ 1.39
Diluted (in dollars per share)	$ 0.55	$ 1.37
Weighted average shares outstanding
Basic (in shares)	18,463,419	18,456,079
Diluted (in shares)	18,799,732	18,831,423