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Leases
12 Months Ended
Dec. 31, 2016
Leases [Abstract]  
Leases

12. Leases

The Company is obligated under certain operating leases to rent space for its facilities and other office space. The original terms of the leases typically range from five to ten years, with optional renewal periods.

Aggregate minimum lease payments under non-cancelable operating leases with original or remaining lease terms in excess of one year were as follows as of December 31, 2016 (in thousands):

 

2017

   $ 65,259   

2018

     58,564   

2019

     54,211   

2020

     49,870   

2021

     46,799   

Thereafter

     768,607   
  

 

 

 

Total minimum rental obligations

   $ 1,043,310   
  

 

 

 

During the years ended December 31, 2016, 2015 and 2014, rent expense was $73.3 million, $32.5 million and $12.2 million, respectively.