Net Income Per Limited Partnsership Unit	6 Months Ended
Jun. 30, 2012
Notes to Financial Statements
Net Income Per Limited Partnsership Unit	Net income per limited partnership unit is calculated by dividing the net income allocated to the limited partners by the number of limited partnership units outstanding during the period.

Tabular disclosure of an entity's capital units or capital shares, including the value of capital units or capital shares, units authorized, units outstanding and other information necessary to a fair presentation.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.6-04.16)

-URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996

Name:	us-gaap_ScheduleOfCapitalUnitsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration