Investments in Unconsolidated Joint Ventures (Combined Financial Information Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets:
Properties	$ 3,816,923	$ 3,728,846
Accumulated depreciation and amortization	(942,840)	(869,375)
Properties, net	2,874,083	2,859,471
Cash and cash equivalents	201,501	161,311
Accounts and notes receivable (1)	122,569	131,767
Equity Method Investment Summarized Financial Information Operating Lease Right Of Use Assets	11,521
Deferred charges and other assets	178,708	140,444
Total Assets	3,388,382	3,292,993
Liabilities and accumulated deficiency in assets:
Notes payable, net	3,049,737	2,815,617
Accounts payable and other liabilities	341,263	426,358
TRG's accumulated deficiency in assets	(212,380)	(49,465)
Unconsolidated Joint Venture Partners' accumulated deficiency in assets	196,488	100,483
Equity Method Investment, Summarized Financial Information, Liabilities and Equity	3,388,382	3,292,993
Equity Method Investment Summarized Financial Information Operating Lease Liabilities	13,274
TRG's investment in Starfield Anseong (Note 2) and advances to CityOn.Zhengzhou	209,024	140,743
TRG basis adjustments, including elimination of intercompany profit	329,673	57,360
TCO's additional basis	32,625	47,178
Net investment in UJVs	358,942	195,816
Distributions in excess of investments in and net income of Unconsolidated Joint Ventures	473,053	477,800
Investment in UJVs	$ 831,995	$ 673,616