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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment [Abstract]  
Property and Equipment at Cost

Property and equipment at cost consisted of the following as of December 31, 2015 and 2014:

 

     December 31,  

(Amounts in thousands)

   2015      2014  

Land and improvements

   $ 5,445       $ 7,548   

Buildings

     71,926         108,784   

Telephone and computer equipment

     840,396         790,254   

Office furniture and equipment

     37,094         33,133   

Leasehold improvements

     59,384         53,023   

Construction in progress

     39,433         53,027   
  

 

 

    

 

 

 
   $ 1,053,678       $ 1,045,769   
  

 

 

    

 

 

 
Future Minimum Payments Under Non-Cancelable Operating Leases

Future minimum payments under non-cancelable operating leases with initial or remaining terms of one year or more are as follows:

 

 

(Amounts in thousands)

   Total
Operating

Leases
 

Year Ending December 31,

  

2016

   $ 23,330   

2017

     20,656   

2018

     17,230   

2019

     14,474   

2020

     10,928   

2021 and thereafter

     42,568   
  

 

 

 

Total minimum obligations

   $ 129,186