Investment in Affiliates, Investment Balance (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments		$ 52	$ 388
Equity Method Investments		37,944		$ 37,776
RezPlot [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments		(500)	(189)
Equity Method Investments		3,684		4,184
Sungenia JV [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments		(115)	(40)
Equity Method Investments		11,576		11,995
GTSC [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments	$ 760	760	575	2,803
Equity Method Investment, Fair Value Adjustment	(2,191)			0
Equity Method Investments	19,028	19,028		18,488	$ 29,780
Equity Method Investment, Adjustment, Allowance for Losses	0			144
Equity Method Investments, Initial Fair Value Adjustment	317			0
Equity Method Investment, Cash Contributions	3,689			33,143
Proceeds from Equity Method Investment, Distribution	$ (2,035)			(47,382)
Origen Financial Services [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments		38	42
Equity Method Investments		186		148
SV Lift [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments		(131)	$ 0
Equity Method Investments		$ 3,470		$ 2,961