Other receivables, Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables for rent, water, sewer usage	$ 7,800		$ 7,100
Allowance for rent, water, sewer usage receivables	(2,200)		(1,500)
Home sale proceeds	20,900
Insurance receivables	9,900		24,100
Notes and other receivables, net	157,926	$ 157,926	160,077
Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes and other receivables, net			112,798
Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes and other receivables, net	19,000		$ 112,798
Other Receivables	$ 4,800