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Benefit Plans - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Pension and other post-retirement plans      
Pension plan contribution $ 30.8 $ 235.2  
Obligations and funded status      
Defined accumulated benefit obligation plans 772.2 804.2  
Expected rate of return on plan assets 3.75% 7.50% 8.00%
Pension plan assets yielded returns (9.90%) 10.80% 7.80%
Pension plans assets      
Asset allocation 92.00%    
Savings plan      
401(k) plan description Under the 401(k) plan, eligible U.S. employees may voluntarily contribute a percentage of their eligible compensation. We match contributions made by employees who meet certain eligibility and service requirements. Our matching contribution is 100% of eligible employee contributions for the first 1% of eligible compensation and 50% of the next 5% of eligible compensation.    
Annual eligible compensation percentage 1.50%    
Participants are 100% vested in employer match ter 3 years of service.On December 31, 2013, the Flow 401(k) plan merged into the 401(k) plan and all employees covered by the Flow 401(k) plan became fully vested in their Flow 401(k) plan employer matching contributions and all future employer matching contributions will be made under the 401(k) plan matching contribution formula.    
Other retirement compensation      
Other accrued retirement compensation 53.3 52.6  
Maximum
     
Pension plans assets      
Expected contribution 37.0    
Minimum
     
Pension plans assets      
Expected contribution 32.0    
Pension benefits
     
Pension and other post-retirement plans      
Benefits paid 331.0    
U.S. Pension Plans
     
Pension and other post-retirement plans      
Benefits paid 20.4 358.9  
Pension plan contribution 190.0    
Obligations and funded status      
Discount rate 4.51% 3.67% 5.05%
Non-US Pension Plans
     
Pension and other post-retirement plans      
Benefits paid 18.2 6.2  
Non-US Pension Plans | Maximum
     
Obligations and funded status      
Discount rate 0.50% 0.50% 0.75%
Expected rate of return on plan assets 6.50% 4.60% 5.20%
Non-US Pension Plans | Minimum
     
Obligations and funded status      
Discount rate 5.00% 4.50% 5.00%
Expected rate of return on plan assets 1.00% 1.00% 0.25%
First 1%
     
Savings plan      
Matching contribution to eligible employee contributions 100.00%    
Percent of eligible compensation 1.00%    
Next 5%
     
Savings plan      
Matching contribution to eligible employee contributions 50.00%    
Percent of eligible compensation 5.00%    
Flow 401(K) Plan
     
Savings plan      
Matching contribution to eligible employee contributions 500.00%    
Percent of eligible compensation 1.00%    
Years of service 3 years    
Matching contribution to eligible employee contributions 100.00%    
401(k) plan and ESOP combined expenese $ 26.8 $ 19.7 $ 15.8
An Additional 1% Match on Flow 401(K) Plan
     
Savings plan      
Additional matching contribution to eligible employee contributions 1.00%    
An Additional 1% Match on Flow 401(K) Plan | Maximum
     
Savings plan      
Years of service 19 years    
An Additional 1% Match on Flow 401(K) Plan | Minimum
     
Savings plan      
Years of service 10 years    
An Additional 2% Match on Flow 401(K) Plan
     
Savings plan      
Additional matching contribution to eligible employee contributions 2.00%    
An Additional 2% Match on Flow 401(K) Plan | Maximum
     
Savings plan      
Years of service 24 years    
An Additional 2% Match on Flow 401(K) Plan | Minimum
     
Savings plan      
Years of service 20 years    
An Additional 3% Match on Flow 401(K) Plan
     
Savings plan      
Additional matching contribution to eligible employee contributions 3.00%    
An Additional 3% Match on Flow 401(K) Plan | Maximum
     
Savings plan      
Years of service 29 years    
An Additional 3% Match on Flow 401(K) Plan | Minimum
     
Savings plan      
Years of service 25 years    
An Additional 4% Match on Flow 401(K) Plan
     
Savings plan      
Additional matching contribution to eligible employee contributions 4.00%    
An Additional 4% Match on Flow 401(K) Plan | Minimum
     
Savings plan      
Years of service 30 years