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Income Taxes (Reconciliation Of Effective Tax Rate) (Details)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]      
Statutory U.S. federal income tax rate 35.00% 35.00% 35.00%
Foreign earnings subject to U.S. tax 3.00% 2.00% 2.00%
Non-deductible Multi Phase Meters earn-out adjustments     1.00%
Settlement of foreign audits     1.00%
Foreign withholding taxes 3.00% 2.00% 3.00%
Change in valuation allowance 6.00% 3.00%  
Other (2.00%)   1.00%
Effective income tax rate 22.00% 34.00% 30.00%
Singapore      
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]      
Foreign earnings subject to different tax rates (8.00%) (1.00%) 2.00%
Malaysia      
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]      
Foreign earnings subject to different tax rates (4.00%) (1.00%) (3.00%)
Luxembourg      
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]      
Foreign earnings subject to different tax rates (4.00%) (4.00%) (6.00%)
Other      
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]      
Foreign earnings subject to different tax rates (7.00%) (2.00%) (6.00%)