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Acquisitions and Dispositions (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Acquisitions and Dispositions (Textual) [Abstract]
Purchase of non-controlling interests	$ 149	$ 221

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- Details

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- Definition

Purchase of non controlling interests.

+ References

No definition available.

+ Details

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