Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies (Details)	9 Months Ended
Sep. 30, 2012 segment entity
Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies
Number of operating segments	3
Number of United States subsidiaries and affiliates filed voluntary petitions for reorganization	61

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration