XML 45 R29.htm IDEA: XBRL DOCUMENT
v3.22.4

Income Attributable to Tennant Company Per Share | 12 Months Ended
--- | ---
Dec. 31, 2022
Earnings Per Share [Abstract] |
Income Attributable to Tennant Company Per Share | Income Attributable to Tennant Company Per Share The computations of basic and diluted earnings attributable to Tennant Company per share for the years ended December 31 were as follows:
| 2022 |  | 2021 |  | 2020
Numerator: |  |  |  |  |
Net income | $ | 66.3 |  |  | $ | 64.9 |  |  | $ | 33.7 |
Denominator: |  |  |  |  |
Basic - weighted average shares outstanding | 18,494,356 |  | 18,499,674 |  | 18,349,724
Effect of dilutive securities | 202,899 |  | 349,543 |  | 285,278
Diluted - weighted average shares outstanding | 18,697,255 |  | 18,849,217 |  | 18,635,002
Basic earnings per share | $ | 3.58 |  |  | $ | 3.51 |  |  | $ | 1.84 |
Diluted earnings per share | $ | 3.55 |  |  | $ | 3.44 |  |  | $ | 1.81 |
Excluded from the dilutive securities shown above were options to purchase and shares to be paid out under share-based compensation plans of 649,054, 171,273 and 610,118 shares of common stock during 2022, 2021 and 2020, respectively. These exclusions were made if the exercise prices of these options are greater than the average market price of our common stock for the period, if the number of shares we can repurchase under the treasury stock method exceeds the weighted shares outstanding in the options or if we have a net loss, as these effects are anti-dilutive.

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI https://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration