VESSELS UNDER CONSTRUCTION (Details) $ in Thousands			1 Months Ended	3 Months Ended
	Sep. 03, 2015 item	May 07, 2015 item	Mar. 31, 2014 item	Mar. 31, 2017 USD ($) item	Mar. 31, 2016 USD ($)
Vessels under construction
Interest Costs Capitalized				$ 1,406	$ 9,847
Total, beginning				177,133
Total, end				60,014
Borrowings under credit facilities				100,131	$ 244,083
VLCCs | Korean Export Credit Facility
Vessels under construction
Number of tankers in new building contract | item	15
Acquired VLCC Newbuildings
Vessels under construction
Capitalized interest expense, beginning				71,731
Interest Costs Capitalized				1,406
Capitalized interest expense, end				73,137
Vessel delivery, beginning				(1,951,784)
Vessels delivery increase				(210,080)
Vessel delivery, end				(2,161,864)
Total, beginning				177,133
Total vessels under construction decrease				(117,119)
Total, end				60,014
2014 Acquired VLCC Newbuildings
Vessels under construction
Vessels/SPV Stock Purchase, beginning				162,683
Vessels/SPV Stock Purchase, end				162,683
Installment and supervision payments, beginning				579,818
Installment and supervision payments, end				579,818
Others, beginning				5,214
Others, end				5,214
2014 Acquired VLCC Newbuildings | Scorpio Tankers Inc
Vessels under construction
Number of tankers in new building contract | item			7
2015 Acquired VLCC Newbuildings
Vessels under construction
Vessels/SPV Stock Purchase, beginning				435,417
Vessels/SPV Stock Purchase, end				435,417
Acquisition-related costs, beginning				10,295
Acquisition-related costs, end				10,295
Installment and supervision payments, beginning				840,833
Installment and supervision payments increase				95,711
Installment and supervision payments, end				936,544
Accrued milestones and supervision payments, beginning				5,368
Accrued milestones and supervision payments decrease				(5,368)
Others, beginning				14,138
Others increase				1,212
Others, end				15,350
Fair value of 2015 Warrant Agreement assumed, beginning				3,381
Fair value of 2015 Warrant Agreement assumed, end				3,381
Fair value of stock option, beginning				39
Fair value of stock option, end				$ 39
Number of vessels delivered | item				2
2015 Acquired VLCC Newbuildings | Korean Export Credit Facility
Vessels under construction
Borrowings under credit facilities				$ 100,100
2015 Acquired VLCC Newbuildings | Crude Oil Tanker | Navig8 Crude Tankers Inc
Vessels under construction
Number of tankers in new building contract | item		14