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Operating Revenues under Customer Agreements (Tables)
12 Months Ended
Dec. 31, 2015
Leases Operating [Abstract]  
Schedule of Future Minimum Lease Payments

Future minimum lease payments to be received from customers whose Customer Agreements represent non-cancelable leases are as follows (in thousands):

 

2016

 

$

13,557

 

2017

 

 

13,697

 

2018

 

 

13,817

 

2019

 

 

13,939

 

2020

 

 

14,065

 

Thereafter

 

 

199,278

 

Total

 

$

268,353