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Name:	us-gaap_ReclassificationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Reclassification [Line Items]
Land sales expenses	$ 67	$ 0	$ 2,773	$ 225
Revision of Prior Period, Reclassification, Adjustment
Reclassification [Line Items]
Land sales expenses				$ 200