Cash Distributions (Details) (USD $)	3 Months Ended	0 Months Ended
Mar. 31, 2013	May 01, 2013 Cash Distribution [Member]
Cash Distribution [Line Items]
Declaration date		May 01, 2013
General Partner distribution (in dollars per unit)		$ 0.41
General partnership interest in Company (in hundredths)	1.00%	1.00%
Percentage of distribution (in hundredths)		1.00%
Distribution date		May 23, 2013
Date of record		May 13, 2013

Percentage of cash dividends for each percent of general partnership interest.

No definition available.

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- Definition

Date of record for distribution of cash, stock, or units to a member or limited partner of limited liability company (LLC) or limited partnership (LP), in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

Date of declaration for distribution of cash, stock, or units to a member or limited partner of limited liability company (LLC) or limited partnership (LP), in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

Date of distribution for distribution of cash, stock, or units to a member or limited partner of limited liability company (LLC) or limited partnership (LP), in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

Per-share or per-unit cash distributions declared to a common shareholder or unit-holder by an LLC or LP.

+ References

No definition available.

+ Details

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- Definition

The number of units or percentage investment held by the managing member or general partner of the LLC or LP.

+ References

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

-Publisher AICPA

-Name Practice Bulletin (PB)

-Number 14

-Paragraph 15

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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