Collateralized Receivables and Transfers of Financial Assets, Schedule of collateralized loans (Details) - Collateralized Receivables [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 140,440	$ 123,650
Financed sales of manufactured homes	23,771	43,083
Principal payments and payoffs from our customers	(11,937)	(10,271)
Principal Reduction Related To Disposed Communities	0	(6,889)
Principal reduction from repossessed homes	(7,797)	9,133
Total activity	4,037	16,790
Ending balance	$ 144,477	$ 140,440