Organization And Summary Of Significant Accounting Policies (Quarterly Distributions Of Available Cash) (Details) (USD $)	3 Months Ended
Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010
Organization And Summary Of Significant Accounting Policies
Record Date	Nov. 07, 2011	Aug. 05, 2011	May 06, 2011	Feb. 07, 2011
Payment Date	Nov. 14, 2011	Aug. 12, 2011	May 13, 2011	Feb. 14, 2011
Cash Distributions (per unit)	$ 0.455	$ 0.450	$ 0.445	$ 0.445

Organization And Summary Of Significant Accounting Policies

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- Definition

Cash dividends declared or paid to each outstanding limited partnership unit during the reporting period.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section F

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187171-122770

+ Details

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- Definition

The day, month, and year (YYYY-MM-DD) that the dividend declared as of or prior to the financial reporting date will be paid in the subsequent period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

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- Definition

The date as of when a holder must own the stock to be entitled to the dividend. The ex-dividend date is generally 3 days before the record date.

+ Details

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