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Real Estate Investments (Tables)
 3 Months Ended
Mar. 31, 2017
Real Estate [Abstract]  
Schedule of Carrying Value of Real Estate Investments
The carrying value of real estate investments is as follows:

 
March 31, 2017
 
December 31, 2016
 
(in thousands)
Land
$
4,143,513

 
$
4,143,513

Buildings, building improvements, land improvements and integral equipment
7,324,486

 
7,324,657

 
11,467,999

 
11,468,170

Less: Accumulated depreciation
(2,448,379
)
 
(2,388,492
)
 
$
9,019,620

 
$
9,079,678