Revenue Recognition - Disaggregation of revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of revenue
Leasing revenue	$ 5,594	$ 4,300
Total revenue	41,305	18,574
Recognized at a point in time
Disaggregation of revenue
Revenue	31,866	11,693
Recognized over time
Disaggregation of revenue
Revenue	3,845	2,581
Real estate
Disaggregation of revenue
Revenue	21,053	5,808
Hospitality
Disaggregation of revenue
Revenue	13,067	6,610
Timber
Disaggregation of revenue
Revenue	1,591	1,856
Operating Segments | Residential
Disaggregation of revenue
Leasing revenue	40	22
Total revenue	20,660	3,038
Operating Segments | Residential | Recognized at a point in time
Disaggregation of revenue
Revenue	20,620	3,016
Operating Segments | Residential | Real estate
Disaggregation of revenue
Revenue	20,539	2,954
Operating Segments | Residential | Hospitality
Disaggregation of revenue
Revenue	81	62
Operating Segments | Hospitality
Disaggregation of revenue
Leasing revenue	8	3
Total revenue	12,994	6,551
Operating Segments | Hospitality | Recognized at a point in time
Disaggregation of revenue
Revenue	9,141	3,967
Operating Segments | Hospitality | Recognized over time
Disaggregation of revenue
Revenue	3,845	2,581
Operating Segments | Hospitality | Hospitality
Disaggregation of revenue
Revenue	12,986	6,548
Operating Segments | Commercial
Disaggregation of revenue
Leasing revenue	5,546	4,275
Total revenue	7,172	8,896
Operating Segments | Commercial | Recognized at a point in time
Disaggregation of revenue
Revenue	1,626	4,621
Operating Segments | Commercial | Real estate
Disaggregation of revenue
Revenue	35	2,765
Operating Segments | Commercial | Timber
Disaggregation of revenue
Revenue	1,591	1,856
Other
Disaggregation of revenue
Total revenue	479	89
Other | Recognized at a point in time
Disaggregation of revenue
Revenue	479	89
Other | Real estate
Disaggregation of revenue
Revenue	$ 479	$ 89