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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
Summary of Future Minimum Lease Commitments

The following is a summary of future minimum lease commitments as of December 31, 2014:

 

(dollars in thousands)

      

2015

   $ 32,338   

2016

     31,078   

2017

     30,690   

2018

     29,281   

2019

     27,505   

Thereafter

     229,452   
  

 

 

 

Total

   $ 380,344