Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2012

Long-term Debt [Abstract]

Components of long-term debt

	December 31,
	2011			2012
Outstanding Primary Principal Amount	$	1,078,621		$	1,078,621
Outstanding Secondary Principal Amount		4,591,361			4,591,361
Other debt		75,143			32,156
Total long-term debt		5,745,125			5,702,138
Less current maturities		(171,525	)		(150,870	)
Total long-term debt, less current maturities	$	5,573,600		$	5,551,268

Maturities of long term debt

	Long Term Debt
Year ended December 31,
2013	$	150,870
2014		5,550,377
2015		891
	$	5,702,138