Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net Sales	$ 263.3	$ 252.1
Cost of Sales	150.0	149.3
Gross Profit	113.3	102.8
Operating Expense:
Research and Development Expense	7.4	7.4
Selling and Administrative Expense	69.6	81.0
Total Operating Expense	77.0	88.4
Operating Income	36.3	14.4
Other Income (Expense):
Interest Income	0.7	0.9
Interest Expense	(4.6)	(5.1)
Net Foreign Currency Transaction Gain (Loss)	0.5	(4.1)
Other Income, Net	0.1	0.2
Total Other Expense, Net	(3.3)	(8.1)
Income Before Taxes	33.0	6.3
Income Tax Expense	7.3	1.1
Net Income Including Noncontrolling Interest	25.7	5.2
Net Income Attributable to Tennant Company	$ 25.7	$ 5.2
Net Income Attributable to Tennant Company per Share:
Basic (in dollars per share)	$ 1.39	$ 0.28
Diluted (in dollars per share)	$ 1.37	$ 0.28
Weighted Average Shares Outstanding:
Basic (in shares)	18,456,079	18,286,816
Diluted (in shares)	18,831,423	18,666,238