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Joint Ventures (Summarized Information for Joint Ventures) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]
Net sales	$ 11,332	$ 10,664
Gross profit	3,652	2,248
Net income	$ 1,955	$ 1,058

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

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