Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments And Hedging Activities (Details Textual)

v2.3.0.15
Derivative Instruments And Hedging Activities (Details Textual) (USD $)
In Millions, unless otherwise specified
 9 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended
Sep. 30, 2011
Regions
Year
SwapAgreements
Country
Distributors
Contract
Dec. 31, 2009
Dec. 31, 2010
Year
Contract
Sep. 30, 2011
Foreign exchange currency contracts [Member]
Dec. 31, 2010
Foreign exchange currency contracts [Member]
Dec. 31, 2009
Interest Rate Swap [Member]
Sep. 30, 2011
Interest Rate Swap [Member]
Dec. 31, 2010
Interest Rate Swap [Member]
Sep. 30, 2011
Freestanding Derivatives [Member]
Dec. 31, 2010
Freestanding Derivatives [Member]
Aug. 31, 2009
Maximum [Member]
Aug. 31, 2009
Minimum [Member]
Additional Derivative Instruments and Hedging Activities (Textual) [Abstract]                        
Maximum duration of hedging of interest rate swap derivative exposure 1 year 10 months                      
Maximum duration of hedging of interest rate swap derivative   Less than 4 year                    
Number of interest rate swap agreements 4                      
Interest rate swap agreements, Aggregate Notional Amounts   $ 140.0                    
Average effective fixed rate on notional balances of debt and interest rate swap, minimum   4.28%                    
Average effective fixed rate on notional balances of debt and interest rate swap, maximum   5.28%                    
Number of outstanding foreign currency option contracts 0   0                  
Derivative Instruments and Hedging Activities (Textual) [Abstract]                        
Effective date of interest rate swap agreements Dec. 31, 2009
Weighted average fixed interest rate on notional amounts           2.78%            
Outstanding Notional Amount of Foreign Currency Forward Contract       41.2 32.1              
Derivative Higher Remaining Maturity Range       Next 12 Months                
Interest on New Credit Facility The highest of Federal Funds Rate plus 0.50%, one-month LIBOR plus 1.00%, and the prime rate offered by Bank of America                   LIBOR + 2.50% LIBOR + 1.50%
Interest rate applicable on interest rate swap agreements for stipulated period           1 month LIBOR Rate            
Expiration date of interest rate swap agreements Jul. 01, 2013
Average Remaining Maturity of Foreign Currency Derivative       Less than twelve months Less than twelve months       within 1 month within 3 months    
Liabilities related to Interest rate swaps at fair value             6.0 6.6        
Fair Value of outstanding foreign currency forward contracts       $ 2.1 $ 0.6