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Fair Value Of Financial Instruments (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) agreement	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Other comprehensive loss	$ (6,452)	$ (209)
Amount reclassified from other comprehensive loss to interest expense (less than)	(100)
Accumulated other comprehensive loss
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Other comprehensive loss	(6,452)	$ (209)
Accumulated other comprehensive loss \| One of our equity method investees
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Other comprehensive loss	800
Fair Value, recurring \| Interest rate swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative Liability	$ (5,555)
Derivative Asset			$ 130
Fair Value, recurring \| Interest rate swap \| One of our equity method investees
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Number of interest rate swap agreements \| agreement	2
Mortgage payable \| Hoboken
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Number of interest rate swap agreements	2
Other comprehensive loss	$ 5,700
Notional amount of derivative liability	56,500
Mortgage payable	$ 56,500
Fixed interest rate on derivative	3.67%
Other liabilities and deferred credits
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative Liability	$ 5,600
Fair Value, Inputs, Level 1 [Member] \| Fair Value, recurring \| Interest rate swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative Liability	0
Derivative Asset			0
Fair Value, Inputs, Level 2 [Member] \| Fair Value, recurring \| Interest rate swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative Liability	(5,555)
Derivative Asset			130
Fair Value, Inputs, Level 3 [Member] \| Fair Value, recurring \| Interest rate swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative Liability	$ 0
Derivative Asset			$ 0