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Restructuring (Cumulative Restructuring and Remaining Costs) (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Mar. 31, 2021
--- | --- | ---
2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | $ 31.6
2019 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 16.1
2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 13.1
Severance | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 27.0
Severance | 2019 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 16.1
Severance | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 26.5
Other Restructuring | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 4.6
Other Restructuring | 2019 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 0.0
Other Restructuring | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | (13.4)
Fluid Handling | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 3.8
Fluid Handling | 2019 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 16.1
Fluid Handling | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 0.8
Fluid Handling | Severance | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 3.8
Fluid Handling | Severance | 2019 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 16.1
Fluid Handling | Severance | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 13.5
Fluid Handling | Other Restructuring | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 0.0
Fluid Handling | Other Restructuring | 2019 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 0.0
Fluid Handling | Other Restructuring | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | (12.7)
Payment & Merchandising Technologies | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 20.7
Payment & Merchandising Technologies | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 12.4
Payment & Merchandising Technologies | Severance | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 16.1
Payment & Merchandising Technologies | Severance | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 11.7
Payment & Merchandising Technologies | Other Restructuring | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 4.6
Payment & Merchandising Technologies | Other Restructuring | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 0.7
Aerospace & Electronics | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 6.5
Aerospace & Electronics | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | (0.1)
Aerospace & Electronics | Severance | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 6.5
Aerospace & Electronics | Severance | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 1.3
Aerospace & Electronics | Other Restructuring | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 0.0
Aerospace & Electronics | Other Restructuring | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | (1.4)
Engineered Materials | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 0.6
Engineered Materials | Severance | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | 0.6
Engineered Materials | Other Restructuring | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Cumulative Restructuring Costs, Net |  | $ 0.0
Forecast | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | $ 0.0 |
Forecast | 2019 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | 2.1 |
Forecast | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | 0.0 |
Forecast | Fluid Handling | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | 0.0 |
Forecast | Fluid Handling | 2019 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | 2.1 |
Forecast | Fluid Handling | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | 0.0 |
Forecast | Payment & Merchandising Technologies | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | 0.0 |
Forecast | Payment & Merchandising Technologies | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | 0.0 |
Forecast | Aerospace & Electronics | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | 0.0 |
Forecast | Aerospace & Electronics | 2017 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | 0.0 |
Forecast | Engineered Materials | 2020 Repositioning Actions |  |
Restructuring Cost and Reserve [Line Items] |  |
Remaining Costs | $ 0.0 |

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