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Investments In Affiliated Companies, Partnership And Other Companies (Schedule Of Equity In Net Earnings Of Affiliated Companies) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments In Affiliated Companies, Partnership And Other Companies [Line Items]
Equity in net earnings of affiliated companies and partnerships	$ 13,032	$ 11,160	$ 15,377
SCD
Investments In Affiliated Companies, Partnership And Other Companies [Line Items]
Equity in net earnings of affiliated companies and partnerships	5,439	5,524	5,807
VSI
Investments In Affiliated Companies, Partnership And Other Companies [Line Items]
Equity in net earnings of affiliated companies and partnerships	5,664	8,403	8,454
Others
Investments In Affiliated Companies, Partnership And Other Companies [Line Items]
Equity in net earnings of affiliated companies and partnerships	$ 1,929	$ (2,767)	$ 1,116

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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