Condensed Consolidated Statements of Earnings - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues	$ 214.0	$ 299.7	$ 466.1	$ 562.1
Cost of Sales	(123.4)	(178.9)	(271.4)	(333.1)
Gross Profit	90.6	120.8	194.7	229.0
Operating Expense:
Research and Development Expense	6.6	8.4	14.0	15.6
Selling and Administrative Expense	61.1	92.5	143.4	182.7
Total Operating Expense	67.7	100.9	157.4	198.3
Profit from Operations	22.9	19.9	37.3	30.7
Other Income (Expense):
Interest Income	0.8	0.9	1.7	1.7
Interest Expense	(5.6)	(5.4)	(10.7)	(10.5)
Net Foreign Currency Transaction Losses	0.0	(0.2)	(4.1)	0.0
Other Income (Expense), Net	(0.2)	1.4	0.0	1.3
Total Other Expense, Net	(5.0)	(3.3)	(13.1)	(7.5)
Profit Before Income Taxes	17.9	16.6	24.2	23.2
Income Tax Expense	3.6	1.8	4.7	3.0
Net Earnings Including Noncontrolling Interest	14.3	14.8	19.5	20.2
Net Earnings Attributable to Tennant Company	$ 14.3	$ 14.8	$ 19.5	$ 20.2
Net Earnings (Loss) Attributable to Tennant Company per Share:
Basic	$ 0.78	$ 0.82	$ 1.06	$ 1.12
Diluted	$ 0.77	$ 0.81	$ 1.05	$ 1.10
Weighted Average Shares Outstanding:
Basic	18,347,189	18,082,492	18,317,003	18,062,591
Diluted	18,584,693	18,394,865	18,614,527	18,367,384