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BASIS OF PRESENTATION (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended |  |  | 3 Months Ended
--- | --- | --- | --- | ---
Mar. 30, 2013 | Mar. 31, 2012 | Mar. 30, 2013 Shanghai Electric JV | Dec. 30, 2011 Shanghai Electric JV | Mar. 30, 2013 EGS Electrical Group, LLC and Subsidiaries ("EGS") | Mar. 31, 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% |
Lag in including results in consolidated statements |  |  |  |  | 3 months |
Revenues from joint venture |  |  |  |  | $ 125.1 | $ 133.1
Equity earnings in joint ventures | $ 9.1 | $ 9.5 |  |  | $ 9.2 | $ 9.3

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