Future Minimum Rents (Tables)

12 Months Ended

Dec. 31, 2015

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, 2015, under non-cancelable operating leases which expire on various dates through 2046, are as follows: 

Years Ending December 31,	(in thousands)
2016	$	1,854,538
2017	1,815,632
2018	1,733,703
2019	1,666,019
2020	1,500,843
Thereafter	8,667,163