Reporting Segments and Related Information - Additional Information (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)
Revenue from External Customer [Line Items]
Number of reportable segments | segment			5
Segment losses	$ 14,340,000	$ 12,125,000	$ 33,974,000	$ 34,160,000
Real estate - resort/residential
Revenue from External Customer [Line Items]
Total revenues			0
Segment losses	$ 273,000	$ 582,000	$ 1,225,000	$ 1,872,000