XML 14 R46.htm IDEA: XBRL DOCUMENT v2.4.0.6
Special Purpose Entities, Including Variable Interest Entities (Details 1) (Variable Interest Entity [Member], USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Variable Interest Entity [Member]
   
Supplemental information about the loans held as assets and long-term debt associated with the VIEs    
Loans, Estimated fair value $ 14,238,273 $ 14,126,994
Long-term debt, fair value 14,132,936 14,039,450
Loans, Unpaid principal balance 13,508,803 13,735,799
Long term debt, Unpaid principal balance $ 14,923,319 $ 15,134,711