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Consolidated Statements of Equity - USD ($) $ in Millions | Total | Tennant Company Shareholders' Equity | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Loss | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2019 |  |  | 18,336,010 |  |  |  |
Beginning balance at Dec. 31, 2019 | $ 361.3 | $ 359.9 | $ 6.9 | $ 45.5 | $ 346.0 | $ (38.5) | $ 1.4
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 33.7 | 33.7 |  |  | 33.7 |  |
Other comprehensive (loss) income | 18.4 | 18.4 |  |  |  | 18.4 |
Issue stock for directors, employee benefit and stock plans, net of related tax withholdings (in shares) |  |  | 167,795 |  |  |  |
Issue stock for directors, employee benefit and stock plans, net of related tax withholdings | 3.3 | 3.3 |  | 3.3 |  |  |
Share-based compensation | 6.0 | 6.0 |  | 6.0 |  |  |
Dividends paid per common share | (16.3) | (16.3) |  |  | (16.3) |  |
Purchase of noncontrolling interests | (0.1) | (0.1) |  | (0.1) |  |  |
Other | (0.2) | (0.1) |  |  | (0.1) |  | (0.1)
Ending balance (in shares) at Dec. 31, 2020 |  |  | 18,503,805 |  |  |  |
Ending balance at Dec. 31, 2020 | 406.1 | 404.8 | $ 6.9 | 54.7 | 363.3 | (20.1) | 1.3
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 64.9 | 64.9 |  |  | 64.9 |  |
Other comprehensive (loss) income | (17.8) | (17.8) |  |  |  | (17.8) |
Issue stock for directors, employee benefit and stock plans, net of related tax withholdings (in shares) |  |  | 228,293 |  |  |  |
Issue stock for directors, employee benefit and stock plans, net of related tax withholdings | 5.0 | 5.0 | $ 0.1 | 4.9 |  |  |
Share-based compensation | 9.5 | 9.5 |  | 9.5 |  |  |
Dividends paid per common share | $ (17.5) | (17.5) |  |  | (17.5) |  |
Repurchases of common stock (in shares) | (196,982) |  | (196,982) |  |  |  |
Repurchases of common stock | $ (15.0) | (15.0) |  | (15.0) |  |  |
Other | $ (0.1) | (0.1) |  |  | (0.1) |  |
Ending balance (in shares) at Dec. 31, 2021 | 18,535,116 |  | 18,535,116 |  |  |  |
Ending balance at Dec. 31, 2021 | $ 435.1 | 433.8 | $ 7.0 | 54.1 | 410.6 | (37.9) | 1.3
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 66.3 | 66.3 |  |  | 66.3 |  |
Other comprehensive (loss) income | (12.3) | (12.3) |  |  |  | (12.3) |
Issue stock for directors, employee benefit and stock plans, net of related tax withholdings (in shares) |  |  | 66,125 |  |  |  |
Issue stock for directors, employee benefit and stock plans, net of related tax withholdings | (0.9) | (0.9) |  | (0.9) |  |  |
Share-based compensation | 7.8 | 7.8 |  | 7.8 |  |  |
Dividends paid per common share | $ (18.9) | (18.9) |  |  | (18.9) |  |
Repurchases of common stock (in shares) | (79,756) |  | (79,756) |  |  |  |
Repurchases of common stock | $ (5.0) | (5.0) |  | (5.0) |  |  |
Ending balance (in shares) at Dec. 31, 2022 | 18,521,485 |  | 18,521,485 |  |  |  |
Ending balance at Dec. 31, 2022 | $ 472.1 | $ 470.8 | $ 7.0 | $ 56.0 | $ 458.0 | $ (50.2) | $ 1.3

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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. 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- Definition This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy. + References No definition available. + Details
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