Combined Guarantor Subsidiaries - Subsequent Events - Narrative (Details) - USD ($) $ in Thousands		Oct. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Subsequent Event [Line Items]
Mortgages	[1]		$ 5,818	$ 7,672
Mortgages
Subsequent Event [Line Items]
Mortgages			$ 3,604	$ 4,884
Mortgages | Village Square | Subsequent Event
Subsequent Event [Line Items]
Mortgages		$ 910

[1] As of September 30, 2019, includes $484,345 of assets related to consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities and $346,999 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Company. See Note 7.