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Segment Results (Schedule Of Goodwill By Segment) (Detail) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
Goodwill | $ 1,157.7 | $ 1,149.2 | $ 1,167.9
Fluid Handling [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill | 213.7 | 212.3 | 218.7
Payment and Merchandising Technologies [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill | 570.4 | 563.3 | 575.2
Aerospace and Electronics [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill | 202.3 | 202.3 | 202.6
Engineered Materials |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill | $ 171.3 | $ 171.3 | $ 171.4

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