Restructuring and Other Related Charges Restructuring and Other Related Charges by Segment (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring charges | $ 22.1 | $ 24.3 | $ 28.0 |
| Operating Segments | Professional Instrumentation | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring charges | 6.8 | 9.4 | 12.1 |
| Operating Segments | Industrial Technologies | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring charges | $ 15.3 | $ 14.9 | $ 15.9 |