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Fair Value Measurements (Additional Information) (Detail) - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of our revolving facility and senior debt $ 1,122.4  
Carrying value of our revolving facility and senior debt $ 1,098.6  
4.5% Senior Notes, due December 2020    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Stated interest rate 4.50%  
4.2% Senior Notes, due December 2021    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Stated interest rate 4.20%  
CIDRA Precision Services, LLC    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Contingent consideration $ 1.0  
Accrued Expenses    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Contingent consideration $ 1.0 $ 4.7