Operating Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

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

The future minimum rental income due under the remaining terms of the Company's operating leases in place, excluding tenant reimbursements of operating expenses and real estate taxes and additional percentage rent based on tenants’ sales volumes, as of December 31, 2019, is presented below, assuming that all leases which expire are not renewed and tenant renewal options are not exercised (excludes rental income due from tenants of multifamily communities, which are of lease terms of twelve months or less):

For the year ending December 31:	Future Minimum Rents as of December 31, 2019
(In thousands)	New Market Properties		Preferred Office Properties		Total
2020	$	76,382	$	81,558	$	157,940
2021	68,290		80,263		148,553
2022	57,629		78,421		136,050
2023	48,206		76,897		125,103
2024	37,235		73,239		110,474
Thereafter	104,744		336,842		441,586
Total	$	392,486	$	727,220	$	1,119,706

For the year ending December 31:	Future Minimum Rents as of December 31, 2018
(In thousands)	New Market Properties		Preferred Office Properties		Total
2020	$	51,949	$	61,704	$	113,653
2021	43,152		58,805		101,957
2022	35,218		58,108		93,326
2023	29,562		57,343		86,905
Thereafter	79,747		298,469		378,216
Total	$	297,771	$	590,993	$	888,764