Future Minimum Rents (Tables)

12 Months Ended

Dec. 31, 2016

Future Minimum Rents [Abstract]

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

The future contractual minimum lease payments to be received (excluding operating expense reimbursements) by the Company as of December 31, 2016, under non-cancelable operating leases which expire on various dates through 2046, are as follows: 

Years Ending December 31,	(in thousands)
2017	$	1,906,847
2018	1,903,887
2019	1,887,137
2020	1,741,024
2021	1,553,526
Thereafter	9,367,433