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Restructuring Reserve Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 30 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Charges | $ 8.4 | $ 4.1 |
Restructuring and acquisition-related costs | 12.1 | 18.3 |
Minimum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Cost Remaining | 25.0 |  | $ 25.0
Maximum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Cost Remaining | 35.0 |  | 35.0
2016 Restructuring Plan - Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Charges |  |  | 2.8
2016 Restructuring Plan - Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Charges |  |  | $ 29.6
Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Charges | 4.1 | 0.2 |
Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Charges | $ 4.3 | $ 3.9 |

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