XML 101 R41.htm IDEA: XBRL DOCUMENT v2.4.0.6
Basis Of Presentation And Significant Accounting Policies (Notes Receivable And Related Allowance For Credit Losses) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Notes Receivable [Line Items]    
Notes receivable, gross $ 57,841 $ 78,834
Allowance for credit losses (26,865) (41,647)
Notes receivable, net $ 30,976 $ 37,187