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BASIS OF PRESENTATION (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Shanghai Electric JV
Dec. 30, 2011
Shanghai Electric JV
Sep. 28, 2013
EGS Electrical Group, LLC and Subsidiaries ("EGS")
Jun. 29, 2013
EGS Electrical Group, LLC and Subsidiaries ("EGS")
Sep. 29, 2012
EGS Electrical Group, LLC and Subsidiaries ("EGS")
Jun. 30, 2012
EGS Electrical Group, LLC and Subsidiaries ("EGS")
Sep. 28, 2013
EGS Electrical Group, LLC and Subsidiaries ("EGS")
Jun. 29, 2013
EGS Electrical Group, LLC and Subsidiaries ("EGS")
Sep. 29, 2012
EGS Electrical Group, LLC and Subsidiaries ("EGS")
Jun. 30, 2012
EGS Electrical Group, LLC and Subsidiaries ("EGS")
BASIS OF PRESENTATION                            
Length of quarter 91 days                          
Investment in joint venture under equity method investment                            
Percentage of interest held in joint venture         45.00% 45.00% 44.50%       44.50%      
Lag in including results in consolidated statements                     3 months      
Equity earnings in joint ventures $ 11.4 $ 8.6 $ 30.6 $ 25.0     $ 11.4   $ 8.6   $ 30.5   $ 25.1  
Revenues               129.1   127.5   380.2   387.2
Gross profit               57.0   52.8   164.7   161.7
Income from continuing operations               25.7   19.4   68.5   56.4
Net income               $ 25.7   $ 19.4   $ 68.5   $ 56.4