Organization And Basis Of Presentation (Details)	Jun. 30, 2012
Organization And Basis Of Presentation [Abstract]
Ownership percentage in joint ventures	50.00%

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant