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Lease Exit Liability (Tables)
6 Months Ended
Jun. 30, 2014
Restructuring And Related Activities [Abstract]  
Changes in Lease Exit Liability

Changes in the lease exit liability are as follows (in thousands):

 

Accrual balance at December 31, 2013

   $ 9,445   

Principal payments

     (703
  

 

 

 

Accrual balance at June 30, 2014

   $ 8,742