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Consolidated Balance Sheets (Parentheticals) - shares	Dec. 31, 2017	Dec. 31, 2016
Consolidated Balance Sheets [Abstract]
Limited Partners - Common Units Issued	127,246,692	122,094,633
Limited Partners - Common Units Outstanding	127,246,692	122,094,633
Limited Partners - Preferred Units Issued	12,983,333	12,983,333
Limited Partners - Preferred Units Outstanding	12,983,333	12,983,333

X

- Definition

The number of common partnership units issued.

+ References

No definition available.

+ Details

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Balance Type:	na
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X

- Definition

The number of common partnership units outstanding.

+ References

No definition available.

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X

- Definition

The number of preferred units issued.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

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X

- Definition

The number of preferred units outstanding.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

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