VESSELS UNDER CONSTRUCTION (Details)		1 Months Ended	3 Months Ended		6 Months Ended
	May 07, 2015 USD ($) item	Mar. 31, 2014 item	Jun. 30, 2016 USD ($) item	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) item	Jun. 30, 2015 USD ($)
Vessels under construction
Interest Costs Capitalized			$ 7,763,000	$ 7,926,000	$ 17,610,000	$ 11,471,000
Total, beginning					911,017,000
Total, end			543,533,000		543,533,000
Acquired VLCC Newbuildings
Vessels under construction
Capitalized interest expense, beginning					44,130,000
Interest Costs Capitalized					17,610,000
Capitalized interest expense, end			61,740,000		61,740,000
Vessel delivery, beginning					(327,767,000)
Vessels delivery increase					(864,064,000)
Vessel delivery, end			(1,191,831,000)		(1,191,831,000)
Total, beginning					911,017,000
Total vessels under construction decrease					(367,484,000)
Total, end			543,533,000		543,533,000
2014 Acquired VLCC Newbuildings
Vessels under construction
Vessels/SPV Stock Purchase, beginning					162,683,000
Vessels/SPV Stock Purchase, end			162,683,000		162,683,000
Installment and supervision payments, beginning					287,259,000
Installment and supervision payments increase					234,580,000
Installment payments, end			521,839,000		521,839,000
Accrued milestones and supervision payments, end					18,895,000
Accrued milestones and supervision payments decrease					(18,895,000)
Others, beginning					2,687,000
Others increase					2,017,000
Others, end			$ 4,704,000		$ 4,704,000
Number of vessels delivered | item			1
Number of vessels remaining to be delivered | item					1
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					$ 435,417,000
Vessels/SPV Stock Purchase, end			$ 435,417,000		435,417,000
Acquisition-related costs, beginning					10,295,000
Acquisition-related costs, end			10,295,000		10,295,000
Installment and supervision payments, beginning					183,738,000
Installment and supervision payments increase					324,393,000
Installment payments, end			508,131,000		508,131,000
Accrued milestones and supervision payments, end					87,150,000
Accrued milestones and supervision payments decrease					(67,990,000)
Accrued milestones and supervision payments, beginning			19,160,000		19,160,000
Others, beginning					3,110,000
Others increase					4,865,000
Others, end			7,975,000		7,975,000
Fair value of 2015 Warrant Agreement assumed, beginning					3,381,000
Fair value of 2015 Warrant Agreement assumed, end			3,381,000		3,381,000
Fair value of stock option, beginning					39,000
Fair value of stock option, end			$ 39,000		$ 39,000
Number of vessels delivered | item			2
Number of vessels remaining to be delivered | item					9
2015 Acquired VLCC Newbuildings | Crude Oil Tanker | Navig8 Crude Tankers Inc
Vessels under construction
Number of tankers in new building contract | item	14
2015 Acquired VLCC Newbuildings | Stock options | Navig8 Crude Tankers Inc
Vessels under construction
Fair value of stock option, end	$ 39,000