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NOTES RECEIVABLE FROM MOBILE HOME PARKS (MHP Notes) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Notes Receivable from Mobile Home Parks
Notes Receivable
Charge offs	$ 0	$ 0	$ 0	$ 0
Allowance for loan losses	$ 0		$ 0		$ 0
Accounts receivable | Credit concentration risk | Independent third party and affiliates
Notes Receivable
Concentration risk percentage			47.40%		38.30%

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