Balance Sheet Parenthetical (USD $)	Sep. 30, 2011	Dec. 31, 2010
Capital units, stated value	$ 0.50	$ 0.50
Capital units, units issued and outstanding	29,620,000	29,620,000

Number of capital units or capital shares outstanding. This element is relevant to issuers of face-amount certificates and registered investment companies.

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(a))

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

Name:	us-gaap_CapitalUnitsOutstanding
Namespace Prefix:	us-gaap
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant