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v3.20.1

SUBSEQUENT EVENTS (Details) |  |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 16, 2020 USD ($) suezmax_tanker | Jan. 23, 2020 USD ($) | Feb. 29, 2020 USD ($) very_large_crude_carrier $ / shares | Jan. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 $ / shares shares | Dec. 31, 2018 $ / shares shares | Dec. 31, 2017 $ / shares shares | Jan. 31, 2019 USD ($) | Jun. 30, 2018
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  | 28.90% | 20.00%
Shares issued under ATM program (in shares) | shares |  |  |  |  | 11,037,273 | 11,868 | 0 |  |
Share capital, shares issued (in shares) | shares |  |  |  |  | 196,894,321 | 169,821,192 |  |  |
Shareholder loan receivable |  |  |  |  |  |  |  | $ 6,000,000 |
Cash dividends per share declared (in dollars per share) | $ / shares |  |  |  |  | $ 0.1 | $ 0 | $ 0.3 |  |
Subsequent Event |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Payments to acquire interest in affiliates |  | $ 800,000 |  |  |  |  |  |  |
Ownership percentage |  | 17.34% |  |  |  |  |  |  |
Shares issued under ATM program (in shares) | shares |  |  |  | 798,000 |  |  |  |  |
Shares issued, price per share (in dollars per share) | $ / shares |  |  |  | $ 7.30 |  |  |  |  |
Common stock, value |  |  |  | $ 197,692,321 |  |  |  |  |
Share capital, shares issued (in shares) | shares |  |  |  | 197,692,321 |  |  |  |  |
Joint venture, ownership interest |  |  |  | 15.00% |  |  |  |  |
Shareholder loan receivable |  |  |  | $ 1,500,000 |  |  |  |  |
Guarantee To Related Party |  |  |  | 50,000,000 |  |  |  |  |
Cash dividends per share declared (in dollars per share) | $ / shares |  |  | $ 0.40 |  |  |  |  |  |
Number Of Vessels Acquired Under SPA | suezmax_tanker | 10 |  |  |  |  |  |  |  |
SFL | Subsequent Event |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Contract termination receivable |  |  | $ 3,200,000 |  |  |  |  |  |
Gain on contract termination |  |  | $ 7,400,000 |  |  |  |  |  |
Number of vessels chartered in | very_large_crude_carrier |  |  | 2 |  |  |  |  |  |
Repayments of notes payable |  |  | $ 20,000,000 |  |  |  |  |  |
Term loan facility $62.5 million | Subsequent Event |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Principal amount |  |  | $ 62,500,000.0 |  |  |  |  |  |
Term of debt |  |  | 5 years |  |  |  |  |  |
Interest rate amortization profile |  |  | 18 years |  |  |  |  |  |
March 2020 Sale Leaseback Agreement | Subsequent Event |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Term of debt | 7 years |  |  |  |  |  |  |  |
Interest rate amortization profile | 17 years 9 months 18 days |  |  |  |  |  |  |  |
Sale leaseback agreement, maximum amount | $ 544,000,000 |  |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) | Term loan facility $62.5 million | Subsequent Event |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Basis spread on variable interest rate |  |  | 1.90% |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) | March 2020 Sale Leaseback Agreement | Subsequent Event |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Basis spread on variable interest rate | 2.30% |  |  |  |  |  |  |  |

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