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Restructuring and Exit Activities (Tables)
 3 Months Ended
Mar. 31, 2015
Restructuring and Related Activities [Abstract]  
Summary of Restructuring Related Obligations
The following table reconciles the obligation as of the dates presented:
 
As of
 
March 31,
 
December 31,
 
2015
 
2014
Balance at beginning of period
$
14,790

 
$
15,993

Accretion
212

 
1,301

Cash payments, net
(523
)
 
(2,504
)
Balance at end of period
$
14,479

 
$
14,790