| U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2012 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2012 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2012 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2012 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2011 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2011 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2011 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2011 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2010 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2010 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2010 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2010 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2009 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2009 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2009 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2009 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2008 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2008 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2008 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2008 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2007 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2007 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2007 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2007 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2006 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2006 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2006 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2006 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2005 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2005 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2005 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2005 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2004 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2004 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2004 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2004 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2003 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2003 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2003 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2003 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2002 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2002 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2002 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2002 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | December 31, 2001 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | September 30, 2001 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | June 30, 2001 | Bankruptcy Filings |  | 
              
                                                                                                                                      | U.S. Bankruptcy Courts - Business and Nonbusiness Cases Filed, by Chapter of the Bankruptcy Code | F-2 (Three Months) | March 31, 2001 | Bankruptcy Filings |  |