The number of common partnership units issued.

No definition available.

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- Definition

The number of common partnership units outstanding.

+ References

No definition available.

+ Details

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- Definition

The date the Partnership closed a definitive transaction agreement with a third party, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

Number of vessels disposed during the period.

+ References

No definition available.

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- Definition

Percentage price of partners' capital accounts at which units can be redeemed by the issuer.

+ References

No definition available.

+ Details

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- Definition

Total change in each class of partners' capital accounts during the year due to redemptions, adjustments to redemption value and dividends. All partners include general, limited and preferred partners.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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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.

+ Details

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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

Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

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- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
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- Definition

Date the dividend to be paid was declared, in CCYY-MM-DD format.

+ References

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Period Type:	duration

- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
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Period Type:	duration

- Definition

The number of general partner units issued.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

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- Definition

The number of general partner units outstanding.

+ References

+ Details

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- Definition

Aggregate cash proceeds received from a combination of transactions in which noncurrent assets are sold, which may include the sale of a business, an investment in an affiliate (including an equity method investee), property, plant and equipment and intangible assets. Excludes sales of trading, available-for-sale, and held-to-maturity securities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Balance Type:	credit
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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Subsequent Events (Details) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 27, 2019 USD ($)	Dec. 31, 2018 $ / shares shares	Dec. 31, 2017 shares
Subsequent Event [Line Items]
Common Partnership Units Issued		18,178,100	18,178,100
Common Partnership Units Outstanding		18,178,100	18,178,100
General Partner Units Issued		348,570	348,570
General Partner Units Outstanding		348,570	348,570
Common Unitholders
Subsequent Event [Line Items]
Dividends Payable, Date Declared		Jan. 22, 2019
Dividend declared \| $ / shares		$ 0.315
Dividends Payable, Date to be Paid		Feb. 14, 2019
Dividends Payable, Date of Record		Feb. 05, 2019
Preferred Unitholders
Subsequent Event [Line Items]
Dividends Payable, Date Declared		Jan. 22, 2019
Dividend declared \| $ / shares		$ 0.21375
Dividends Payable, Date to be Paid		Feb. 08, 2019
Dividends Payable, Date of Record		Feb. 01, 2019
Transaction Agreement with DSS
Subsequent Event [Line Items]
Number of vessels disposed	25
Proceeds from business spin off \| $	$ 319,651
Closing date of Transaction Agreement	Mar. 27, 2019
Transaction Agreement with DSS \| Class B Preferred Units
Subsequent Event [Line Items]
Total redemption price including dividends \| $	$ 119,502
Redemption percentage	100.00%
Before Reverse Split
Subsequent Event [Line Items]
Common Partnership Units Issued		127,246,692
Common Partnership Units Outstanding		127,246,692
General Partner Units Issued		2,439,989
General Partner Units Outstanding		2,439,989
2017 Credit Facility
Subsequent Event [Line Items]
Debt variable rate basis			LIBOR
Margin			3.25%
2017 Credit Facility \| Transaction Agreement with DSS
Subsequent Event [Line Items]
Repayment amount \| $	$ 89,298
Credit Facility 2015, Credit Facility 2017 and Aristaios Credit Facility \| Transaction Agreement with DSS
Subsequent Event [Line Items]
Repayment amount \| $	$ 146,517