Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current Assets:
Cash, Cash Equivalents and Restricted Cash	$ 124.7	$ 74.6
Receivables [Abstract]
Trade, less Allowances of $3.2 and $2.5, respectively	198.0	216.5
Other	3.3	6.8
Net Receivables	201.3	223.3
Inventories	133.5	150.1
Prepaid and Other Current Assets	31.8	33.0
Total Current Assets	491.3	481.0
Property, Plant and Equipment	437.7	412.5
Accumulated Depreciation	(259.4)	(239.2)
Property, Plant and Equipment, Net	178.3	173.3
Operating lease assets	43.7	46.6
Goodwill	201.4	195.1
Intangible Assets, Net	126.6	137.7
Other Assets	22.2	29.2
Total Assets	1,063.5	1,062.9
Current Liabilities:
Current Portion of Long-Term Debt	16.0	31.3
Accounts Payable	86.0	94.1
Employee Compensation and Benefits	50.5	63.5
Other Current Liabilities	91.8	86.0
Total Current Liabilities	244.3	274.9
Long-Term Liabilities:
Long-Term Debt	307.6	307.5
Long-Term Operating Lease Liabilities	27.8	30.3
Employee-Related Benefits	18.0	19.4
Deferred Income Taxes	38.7	41.7
Other Liabilities	31.8	27.8
Total Long-Term Liabilities	423.9	426.7
Total Liabilities	668.2	701.6
Equity:
Common Stock, $0.375 par value; 60,000,000 shares authorized; 18,254,017 and 18,125,201 shares issued and outstanding, respectively	6.9	6.9
Additional Paid-In Capital	52.2	45.5
Retained Earnings	365.0	346.0
Accumulated Other Comprehensive Loss	(30.2)	(38.5)
Total Tennant Company Shareholders' Equity	393.9	359.9
Noncontrolling Interest	1.4	1.4
Total Equity	395.3	361.3
Total Liabilities and Total Equity	$ 1,063.5	$ 1,062.9