Debt covenant minimum period for the collateral time charters.

No definition available.

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- Definition

The debt covenant extension period for replacement of new vessel having an equal or greater appraised value if in compliance with collateral maintenance test.

+ References

No definition available.

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- Definition

The debt covenant period for replacement of new vessel having an equal or greater appraised value if in compliance with collateral maintenance test.

+ References

No definition available.

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- Definition

Amount of minimum restricted cash required per terms of the credit facility.

+ References

No definition available.

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- Definition

Debt covenant unrestricted cash and cash equivalents minimum.

+ References

No definition available.

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- Definition

Debt covenant pertaining to unrestricted cash and cash equivalents to total indebtedness.

+ References

No definition available.

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- Definition

Represents the average age of collateral vessels for repayment of loan.

+ References

No definition available.

+ Details

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- Definition

Represents the aggregate fair value of the mortgaged vessels to be maintained as a percentage of aggregate outstanding principal amount as per the terms of the credit facilities' covenants.

+ References

No definition available.

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- Definition

Amount of line of credit facility future amortization payments per quarter per facility agreement. Upon payment of excess cash flow to lenders, these amortization payments shall be adjusted.

+ References

No definition available.

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- Definition

Represents the required payment amount under the line of credit facility due on final maturity date.

+ References

No definition available.

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- Definition

Represents the maximum ratio of total debt outstanding to total capitalization.

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No definition available.

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- Definition

Minimum working capital required per terms of the credit facility.

+ References

No definition available.

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- Definition

Number of oldest vessels identified for sale, for which debt will be paid down.

+ References

No definition available.

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- Definition

The percentage limit of consolidated net income for dividends to be paid if collateral maintenance test is met.

+ References

No definition available.

+ Details

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- Definition

The value of loan when the average age of the vessels serving as collateral from time to time reaches a specified period, following an initial non-amortization period and all additional debt covenants are met.

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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- Definition

Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References

No definition available.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

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DEBT - $460 Million Credit Facility (Details) $ in Thousands					12 Months Ended
	Feb. 28, 2019 USD ($)	Feb. 13, 2019	Jun. 05, 2018 USD ($)	May 31, 2018 USD ($) item	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Repayment of the outstanding debt
Total debt					$ 551,420	$ 519,083
Secured Debt \| $460 Million Credit Facility
Line of Credit Facility
Term of facilities				5 years
Maximum borrowing capacity				$ 460,000	460,000
Proceeds from credit facility			$ 460,000		460,000
Number of oldest vessels identified for sale for which debt will be paid down \| item				7
Remaining borrowing capacity					0
Repayment of secured debt					15,000	0	$ 0
Long-term debt					430,577	$ 0
Reference rate				LIBOR
Amortization payments per quarter				$ 15,000
Repaid value of loan when certain debt terms are met				$ 0
Average age of collateral vessels for repayment of loan				17 years
Percentage limit of consolidated net income for which dividends can be paid				50.00%
Collateral vessel replacement period				120 days
Collateral vessel replacement extension period		180 days
Key covenant - Unrestricted cash and cash equivalents minimum				$ 30,000
Key covenant – Percentage of unrestricted cash to total indebtedness				7.50%
Minimum restricted cash required				$ 0
Minimum working capital required				$ 0
Maximum total indebtedness to total capitalization (as a ratio)				0.70
Key covenant – Minimum time charters period				24 months
Repayment of the outstanding debt
2019					60,000
2020					60,000
2021					60,000
2022					60,000
2023					205,000
Total debt					$ 445,000
Secured Debt \| $460 Million Credit Facility \| Subsequent Event
Line of Credit Facility
Maximum borrowing capacity	$ 460,000
Secured Debt \| $460 Million Credit Facility \| Period upon final maturity on May 31, 2023
Line of Credit Facility
Final payment amount				$ 190,000
Secured Debt \| $460 Million Credit Facility \| LIBOR \| Through December 31, 2018
Line of Credit Facility
Applicable margin over reference rate (as a percent)				3.25%
Secured Debt \| $35,000 Scrubber Tranche \| Subsequent Event
Line of Credit Facility
Maximum borrowing capacity	$ 35,000
Reference rate	LIBOR
Percentage limit of consolidated net income for which dividends can be paid	50.00%
Collateral vessel replacement period	180 days
Secured Debt \| Minimum \| $460 Million Credit Facility
Line of Credit Facility
Collateral security maintenance test (as a percent)				135.00%
Secured Debt \| Minimum \| $460 Million Credit Facility \| LIBOR \| Period after December 31, 2018
Line of Credit Facility
Applicable margin over reference rate (as a percent)				3.00%
Secured Debt \| Maximum \| $460 Million Credit Facility
Line of Credit Facility
Collateral security maintenance test (as a percent)				200.00%
Secured Debt \| Maximum \| $460 Million Credit Facility \| LIBOR \| Period after December 31, 2018
Line of Credit Facility
Applicable margin over reference rate (as a percent)				3.50%
Secured Debt \| Maximum \| $35,000 Scrubber Tranche \| Subsequent Event
Line of Credit Facility
Collateral security maintenance test (as a percent)	200.00%