Segment Reporting Segment Reporting, Seasonality (Details) $ in Millions	3 Months Ended				9 Months Ended
	Dec. 31, 2018 USD ($)	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019 segment	Mar. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment					2
Real Property Operations Segment [Member]
Segment Reporting Information [Line Items]
Expected annual transient RV revenue | $	$ 121.5					$ 25.3
Transient RV rental revenue recognized as a percentage	16.40%	40.30%	23.20%	20.10%