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Investments In Affiliated Companies, Partnership And Other Companies (Income Statement Information) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract]
Revenues	$ 351,183	$ 385,792	$ 402,438
Gross profit	88,440	102,730	117,222
Net income	$ 27,151	$ 27,596	$ 38,131

X

- Definition

The amount of gross profit (loss) reported by an equity method investment of the entity.

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- Definition

The amount of net income (loss) reported by an equity method investment of the entity.

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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