Intangible Assets and Unfavorable Leases Terms (Tables)

12 Months Ended

Dec. 31, 2012

Intangible Assets And Unfavorable Lease Terms [Abstract]

Schedule of Intangible Assets and Unfavorable Lease Terms

	Cost			Accumulated  Amortization			Net Book Value
Total favorable lease terms charter-out December 31, 2010	$	191,874		$	(21,783	)	$	170,091
Additions		43,780			(33,311	)		10,469
Write-off of intangible asset		(8,319	)		4,340			(3,979	)
Total favorable lease terms charter-out December 31, 2011	$	227,335		$	(50,754	)	$	176,581
Additions		21,193			(37,295	)		(16,102	)
Total favorable lease terms charter-out December 31, 2012	$	248,528		$	(88,049	)	$	160,479

Schedule of Amortization (Expense) / Income Of Favorable and Unfavorable Leases

	Year Ended
	December 31,  2012			December 31,  2011			December 31,  2010
Unfavorable lease terms	$	—		$	665		$	1,997
Favorable lease terms charter-out		(37,295	)		(33,311	)		(19,685	)
Favorable lease terms charter-in		—			—			(2	)
Total	$	(37,295	)	$	(32,646	)	$	(17,690	)

Schedule of aggregate amortizations of the intangibles

Year	Amount
2013	$	38,451
2014		27,608
2015		22,335
2016		17,526
2017		17,526
2018 and thereafter		37,033
	$	160,479