Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Finished goods	$ 339,372	$ 684,456
Work-in-process	151,921	152,171
Inventory	$ 491,293	$ 836,627

Represents improvements to real estate during development for ultimate sale to third parties. Improvements may consist of project infrastructure and other expenditures necessary to completion of the development project which is generally of a long-term nature.

No definition available.

Name:	us-gaap_InventoryRealEstateImprovements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant