XML 32 R29.htm IDEA: XBRL DOCUMENT v3.2.0.727
Firm Transportation Obligation (Tables)
 6 Months Ended
Jun. 30, 2015
Restructuring and Related Activities [Abstract]  
Summary of Restructuring Related Obligations
The following table reconciles the obligation as of the dates presented:
 
As of
 
June 30,
 
December 31,
 
2015
 
2014
Balance at beginning of period
$
14,790

 
$
15,993

Accretion
445

 
1,301

Cash payments, net
(1,089
)
 
(2,504
)
Balance at end of period
$
14,146

 
$
14,790