Schedule of notes and other receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total 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]
Total notes and other receivables, net			112,798
Notes receivable from real estate developers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	18,960		0
Other receivables, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	43,386		47,279
Financing Receivable, Allowance for Credit Loss	(600)
Total notes and other receivables [Domain]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	157,926		160,077
Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	$ 19,000		$ 112,798