Vessels (Details) (USD $)	6 Months Ended
	Jun. 30, 2012
Vessels and Vessel Improvements, at December 31, 2011	$ 1,789,381,046
Purchase of Vessel Improvements	58,520
Depreciation Expense	(37,360,998)
Vessels and Vessel Improvements, at June 30, 2012	$ 1,752,078,568