LEASES (Tables)

12 Months Ended

Dec. 31, 2018

Operating Leased Assets [Line Items]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Minimum future lease payments due in each of the next five years and thereafter are as follows:

(in thousands of dollars) For the Year Ending December 31,	Operating Leases		Ground Leases
2019	$	1,823	$	1,184
2020	461		1,384
2021	272		1,584
2022	89		1,584
2023	9		1,584
2024 and thereafter	—		33,959
	$	2,654	$	41,279

Leases Disclosure [Text Block]

LEASES

As Lessor

Our retail properties are leased to tenants under operating leases with various expiration dates ranging through 2095. Future minimum rent under noncancelable operating leases with terms greater than one year at our consolidated properties is as follows:

(in thousands of dollars) For the Year Ending December 31,
2019	$	187,007
2020	166,056
2021	149,007
2022	131,519
2023	113,845
2024 and thereafter	337,516
	$	1,084,950

The total future minimum rent as presented does not include amounts that may be received as tenant reimbursements for certain operating costs or contingent amounts that may be received as percentage rent.

As Lessee

We have operating leases for our corporate office space (see note 10) and for various computer, office and mall equipment. Furthermore, we are the lessee under third-party ground leases for portions of the land at Springfield Town Center and at Plymouth Meeting Mall. Total amounts incurred relating to such leases were $2.8 million, $2.5 million and $2.4 million for the years ended December 31, 2018, 2017 and 2016, respectively. We account for ground rent and operating lease expense on a straight line basis. Minimum future lease payments due in each of the next five years and thereafter are as follows:

(in thousands of dollars) For the Year Ending December 31,	Operating Leases		Ground Leases
2019	$	1,823	$	1,184
2020	461		1,384
2021	272		1,584
2022	89		1,584
2023	9		1,584
2024 and thereafter	—		33,959
	$	2,654	$	41,279

Schedule Of Future Minimum Lease Payments Receivable On Noncancelable Operating Leases [Table Text Block]

Our retail properties are leased to tenants under operating leases with various expiration dates ranging through 2095. Future minimum rent under noncancelable operating leases with terms greater than one year at our consolidated properties is as follows:

(in thousands of dollars) For the Year Ending December 31,
2019	$	187,007
2020	166,056
2021	149,007
2022	131,519
2023	113,845
2024 and thereafter	337,516
	$	1,084,950