Unconsolidated Affiliates and Noncontrolling Interests - Unconsolidated Affiliates (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
ASSETS
Investment in real estate assets	$ 2,100,828		$ 2,097,088
Accumulated depreciation	(687,230)		(674,275)
Real estate investment net, before development in process	1,413,598		1,422,813
Developments in progress	16,961		12,569
Net investment in real estate assets	1,430,559		1,435,382
Other assets	178,916		188,521
Total assets	1,609,475		1,623,903
LIABILITIES
Mortgage and other indebtedness, net	1,318,685		1,319,949
Other liabilities	33,695		39,777
Total liabilities	1,352,380		1,359,726
OWNERS' EQUITY
The Company	185,123		191,050
Other investors	71,972		73,127
Total owners' equity	257,095		264,177
Total liabilities and owners' equity	1,609,475		$ 1,623,903
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Total revenues	55,867	$ 57,181
Net income (loss)	6,010	5,309
Parent Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Net income (loss)	$ 3,308	$ 3,739

Equity Method Investment, Accounts Payable and Accrued Liabilities

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations reported by an equity method investment of the entity.

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