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Fair Value Measurements (Additional Information) (Detail) - USD ($) $ in Millions | Mar. 31, 2016 | Dec. 31, 2015
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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

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