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DEBT - Schedule of Tranches (Details) - Line of Credit - Secured Debt | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Jul. 31, 2013
$449 million newbuild facility |  |
Debt Instrument [Line Items] |  |
Proportion of facility |  | 40.00%
Term of loan from date of drawdown | 12 years |
Repayment terms | Six-monthly installments |
$450 million newbuild facility |  |
Debt Instrument [Line Items] |  |
Proportion of facility |  | 40.00%
Term of loan from date of drawdown | 12 years |
Repayment terms | Six-monthly installments |
$226 million newbuild facility |  |
Debt Instrument [Line Items] |  |
Proportion of facility |  | 20.00%
Term of loan from date of drawdown | 5 years |
Repayment terms | Six-monthly installments, unpaid balance to be refinanced after 5 years |

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- Definition Disclosure of timing of required repayments, sinking fund requirements, and other redeemable securities at fixed or determinable prices and dates in the five years immediately following the date of the latest balance sheet presented in the financial statements, and the amount thereafter to fully repay the principal of long-term debt. These disclosures may be made either on an individual debt or security basis, by type of debt or security basis, or on a combined basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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