CONSOLIDATED BALANCE SHEETS (unaudited) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 51,131,064	$ 129,121,680
Accounts receivable	17,691,006	14,366,495
Prepaid expenses	2,528,144	3,459,721
Inventories	8,529,107	3,190,052
Fair value above contract value of time charters acquired	579,631	594,611
Total current assets	80,458,952	150,732,559
Noncurrent assets:
Vessels and vessel improvements, at cost, net of accumulated depreciation of $209,804,715 and $176,824,438, respectively	1,616,579,578	1,509,798,249
Advances for vessel construction	153,070,603	191,477,225
Other fixed assets, net of accumulated amortization of $228,796 and $153,375, respectively	543,515	420,204
Restricted cash	22,447,822	19,790,341
Deferred drydock costs	3,757,674	4,217,071
Deferred financing costs	14,077,665	16,458,496
Fair value above contract value of time charters acquired	3,324,651	3,608,812
Other assets and accounts receivable, net of allowance	2,267,172	70,001
Total noncurrent assets	1,816,068,680	1,745,840,399
Total assets	1,896,527,632	1,896,572,958
Current liabilities:
Accounts payable	8,463,260	6,089,273
Accrued interest	4,572,451	6,651,554
Other accrued liabilities	10,546,909	5,850,474
Deferred revenue and fair value below contract value of time charters acquired	6,432,595	5,705,326
Unearned revenue	6,992,456	6,091,332
Fair value of derivative instruments	436,336	127,758
Total current liabilities	37,444,007	30,515,717
Noncurrent liabilities:
Long-term debt	1,151,354,476	1,151,354,476
Deferred revenue and fair value below contract value of time charters acquired	20,026,723	23,480,740
Fair value of derivative instruments	16,703,567	22,135,507
Total noncurrent liabilities	1,188,084,766	1,196,970,723
Total liabilities	1,225,528,773	1,227,486,440
Commitment and contingencies
Stockholders' equity:
Preferred stock, $.01 par value, 25,000,000 shares authorized, none issued	0	0
Common stock, $.01 par value, 100,000,000 shares authorized, 62,642,986 and 62,560,436 shares issued and outstanding, respectively	626,430	625,604
Additional paid-in capital	741,979,292	738,251,158
Retained earnings (net of accumulated dividends declared of $262,118,388 as of June 30, 2011 and December 31, 2010, respectively)	(54,903,296)	(47,654,737)
Accumulated other comprehensive loss	(16,703,567)	(22,135,507)
Total stockholders' equity	670,998,859	669,086,518
Total liabilities and stockholders' equity	$ 1,896,527,632	$ 1,896,572,958