Vessels, Net (Details) - USD ($)	3 Months Ended
	Jun. 30, 2015	Mar. 31, 2015
Cost
Impairment	$ 0
Accumulated depreciation
Vessels, net	656,434,852	$ 419,976,053
Mortgaged VLGC vessels, carrying value	652,600,000	416,000,000
Vessels
Cost
Balance at the beginning of the period	439,180,669
Additions	241,450,881
Disposals	(268,281)
Balance at the end of the period	680,363,269
Accumulated depreciation
Balance at the beginning of the period	(19,204,616)
Disposals accumulated depreciation	26,060
Depreciation	(4,749,861)
Balance at the end of the period	(23,928,417)
Vessels, net	656,434,852	$ 419,976,053
Disposals net book value	$ (242,221)