Future Minimum Rents

12 Months Ended

Dec. 31, 2017

Future Minimum Rents [Abstract]

Future Minimum Rents [Text Block]

13. Future Minimum Rents

The properties are leased to tenants under net operating leases with initial term expiration dates ranging from 2018 to 2046. The future contractual minimum lease payments to be received (excluding operating expense reimbursements) by the Company as of December 31, 2017, under non-cancelable operating leases which expire on various dates through 2046, are as follows: 

Years Ending December 31,	(in thousands)
2018	$	1,962,841
2019	1,998,102
2020	1,920,002
2021	1,783,066
2022	1,596,719
Thereafter	11,160,780

No single tenant represented more than 10.0% of the Company’s total rental revenue for the years ended December 31, 2017, 2016 and 2015.