Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2011

Accrued Liabilities [Abstract]

Accrued Liabilities

	December 31,  2011 $		December 31,  2010 $
Voyage and vessel expenses		209,058		179,553
Interest		63,310		70,760
Payroll and benefits and other		83,528		84,912
Deferred revenue		38,690		41,894
		394,586		377,119