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Component: (Network and Table)
Network
169 - Disclosure - Share-Based Compensation - Weighted Average Assumptions Used for Estimating Fair Values of Stock Options Granted (Detail)
(http://www.AmetekInc.com/taxonomy/role/DisclosureShareBasedCompensationWeightedAverageAssumptionsUsedForEstimatingFairValuesOfStockOptionsGranted)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001037868 (http://www.sec.gov/CIK)
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
 
 
 
Expected volatility
21.80%  
22.30%  
23.90%  
Expected term (years)
P5Y  
P5Y  
P5Y  
Risk-free interest rate
1.23%  
1.58%  
1.63%  
Expected dividend yield
0.77%  
0.69%  
0.45%  
Black-Scholes-Merton fair value per stock option granted
9.14  
10.89  
12.21