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Long-Term Trade And Unbilled Receivables (Tables)

12 Months Ended

Dec. 31, 2011

Long-Term Trade And Unbilled Receivables [Abstract]

Schedule Of Long-Term Trade And Unbilled Receivables

		December 31,
		2011				2010
Receivables		$	5,303			$	16,211
Unbilled receivables			157,459				74,132
		$	162,762			$	90,343

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