Schedule of installment notes receivable (Details) - Installment notes receivable on manufactured homes, gross [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 20,610	$ 26,024
Financed sales of manufactured homes	41,322	838
Acquired notes	3,521	850
Principal payments and payoffs from our customers	(4,363)	(4,798)
Principal Reduction Related To Disposed Communities	0	(383)
Principal reduction from repossessed homes	(1,566)	(1,921)
Total activity	38,914	(5,414)
Ending balance	$ 59,524	$ 20,610