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Restructuring (Restructuring Charges by Segment) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring (gains) charges, net | $ (0.2) | $ 23.2 | $ (13.3) | $ 22.0
Process Flow Technologies |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring (gains) charges, net | 0.0 | 4.7 | (12.6) | 4.7
Payment & Merchandising Technologies |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring (gains) charges, net | (0.2) | 13.8 | (0.7) | 12.6
Aerospace & Electronics |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring (gains) charges, net | 0.0 | 4.7 | 0.0 | 4.7
Cost of Sales and Selling, General and Administrative |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Other costs related to facility consolidations | 2.4 | 1.3 | 3.8 | 2.6
Cost of Sales and Selling, General and Administrative | Process Flow Technologies |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Other costs related to facility consolidations | $ 2.4 | 0.5 | $ 3.8 | 1.9
Cost of Sales and Selling, General and Administrative | Payment & Merchandising Technologies |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Other costs related to facility consolidations |  | $ 0.8 |  | $ 0.7

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