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Collateralized Receivables and Transfers of Financial Assets, Schedule of collateralized loans (Details) - Collateralized Receivables [Member]
$ in Thousands
6 Months Ended
Jun. 30, 2017
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Beginning balance $ 144,477
Financed sales of manufactured homes 6,849
Principal payments and payoffs from our customers (5,799)
Principal reduction from repurchased homes (6,031)
Total activity (4,981)
Ending balance $ 139,496