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Note Payable Schedule of Debt (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Total notes payable $ 69,158 $ 79,611
Bank Of America, N.A., Wells Fargo Bank, National Association, And Other Lenders [Member] | Line of Credit [Member]    
Debt Instrument [Line Items]    
Total notes payable 69,158 79,611
Bank Of America, N.A., Wells Fargo Bank, National Association, And Other Lenders [Member] | Line of Credit [Member] | Term Facility [Member]    
Debt Instrument [Line Items]    
Total notes payable 69,158 79,611
Bank Of America, N.A., Wells Fargo Bank, National Association, And Other Lenders [Member] | Line of Credit [Member] | Revolving Facility [Member]    
Debt Instrument [Line Items]    
Total notes payable $ 0 $ 0