Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Each Contract Type, that Represent Performance Obligations

Contract Type	Performance Obligation Description	Elements of Performance Obligations	Payment Timing
Management Agreements	●  Management and asset management services ●  Construction and development services ●  Marketing services	●  Over time ●  Right to invoice ●  Long-term contracts	Typically monthly or quarterly
	●  Leasing and legal preparation services ●  Sales commissions	●  Point in time ●  Long-term contracts
Licensing and Occupancy Agreements	●  Rent of non-specific space	●  Over time ●  Right to invoice ●  Short-term contracts	Typically monthly
	●  Set-up services	●  Point in time ●  Right to invoice
Non-tenant Contracts	●  Placement of miscellaneous items at our centers that do not qualify as a lease, i.e. advertisements, trash bins, etc.	●  Point in time ●  Long-term contracts	Typically monthly
	●  Set-up services	●  Point in time ●  Right to invoice

Schedule Of Restricted Deposits and Escrows

Our restricted deposits and escrows consist of the following (in thousands):

	December 31,
	2020		2019
Restricted deposits	$	12,122	$	12,793
Escrows		216		1,017
Total	$	12,338	$	13,810

Schedule Of Accumulated Other Comprehensive Loss

Changes in accumulated other comprehensive loss by component consists of the following (in thousands):

						Defined
						Benefit
						Pension
	Gain		Gain on			Plan-
	on		Cash Flow			Actuarial
	Investments		Hedges			Loss			Total
Balance, January 1, 2018	$	(1,541)	$	(7,424)		$	15,135		$	6,170
Cumulative effect adjustment of accounting standards		1,541		—			—			1,541
Change excluding amounts reclassified from accumulated other comprehensive loss		—		(1,379)			1,143			(236)
Amounts reclassified from accumulated other comprehensive loss		—		4,302	(1)		(1,228)	(2)		3,074
Net other comprehensive loss (income)		—		2,923			(85)			2,838
Balance, December 31, 2018		—		(4,501)			15,050			10,549
Change excluding amounts reclassified from accumulated other comprehensive loss		—		—			1,044			1,044
Amounts reclassified from accumulated other comprehensive loss		—		887	(1)		(1,197)	(2)		(310)
Net other comprehensive loss (income)		—		887			(153)			734
Balance, December 31, 2019		—		(3,614)			14,897			11,283
Change excluding amounts reclassified from accumulated other comprehensive loss		—		—			898			898
Amounts reclassified from accumulated other comprehensive loss		—		890	(1)		(1,021)	(2)		(131)
Net other comprehensive loss (income)		—		890			(123)			767
Balance, December 31, 2020	$	—	$	(2,724)		$	14,774		$	12,050

(1) This reclassification component is included in interest expense.

(2) This reclassification component is included in the computation of net periodic benefit cost (see Note 15 for additional information).