Condensed Consolidated Statements of Earnings - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues	$ 261.9	$ 280.7	$ 728.0	$ 842.8
Cost of Sales	(157.1)	(166.7)	(428.5)	(499.8)
Gross Profit	104.8	114.0	299.5	343.0
Operating Expense:
Research and Development Expense	7.4	8.2	21.4	23.8
Selling and Administrative Expense	79.0	84.3	222.4	267.0
Total Operating Expense	86.4	92.5	243.8	290.8
Profit from Operations	18.4	21.5	55.7	52.2
Other Income (Expense):
Interest Income	0.8	0.8	2.5	2.5
Interest Expense	(5.2)	(5.2)	(15.9)	(15.7)
Net Foreign Currency Transaction Losses	(0.9)	(0.6)	(5.0)	(0.6)
Other Income (Expense), Net	(0.2)	0.1	(0.2)	1.4
Total Other Expense, Net	(5.5)	(4.9)	(18.6)	(12.4)
Profit Before Income Taxes	12.9	16.6	37.1	39.8
Income Tax Expense	1.2	2.0	5.9	5.0
Net Earnings Including Noncontrolling Interest	11.7	14.6	31.2	34.8
Net Earnings Attributable to Tennant Company	$ 11.7	$ 14.6	$ 31.2	$ 34.8
Net Earnings (Loss) Attributable to Tennant Company per Share:
Basic	$ 0.64	$ 0.81	$ 1.70	$ 1.93
Diluted	$ 0.63	$ 0.79	$ 1.68	$ 1.89
Weighted Average Shares Outstanding:
Basic	18,371,883	18,134,909	18,335,430	18,086,962
Diluted	18,648,328	18,487,948	18,623,967	18,402,929