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Acquisitions (Details) (USD $)
In Millions, unless otherwise specified
Jun. 01, 2011
Australian Fan And Motor Company [Member]
Apr. 05, 2011
Ramu, Inc. [Member]
Dec. 23, 2010
Unico, Inc. [Member]
Apr. 02, 2011
Elco Group B.V. [Member]
Nov. 01, 2010
Elco Group B.V. [Member]
Sep. 01, 2010
Rotor B.V. [Member]
Apr. 06, 2010
CMG Engineering Group Pty, Ltd. [Member]
Business acquisition purchase price $ 5.7 $ 5.3 $ 107.3   $ 27.3 $ 36.4 $ 82.6
Business acquisition recorded liability   16.7 9.2        
Percentage of interest acquired         55.00%    
Business acquisition, cash paid       5.6 4.6   76.5
Business acquisition, cash to be paid in semi-annual payments         17.1    
Business acquisitions no of installments payment         3    
Business acquisition purchase price paid in shares             $ 6.1