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Notes and Other Receivables (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Notes receivable $ 18,198 $ 19,285
Bridge loan 3,500 3,100
Notes Receivable [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Notes receivable 3,522 3,092
Other Receivables [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Notes receivable 11,457 12,974
Secured Due December 2016 [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Notes receivable $ 3,219 $ 3,219
Stated interest rate (in hundredths) 6.00%