XML 48 R20.htm IDEA: XBRL DOCUMENT v3.3.0.814
Decommissioning and Other Asset Retirement Obligations (Tables)
 9 Months Ended
Sep. 30, 2015
Decommissioning and Other Asset Retirement Obligations (Tables)  
Decommissioning and Other Asset Retirement Obligations Table
 
Three Months Ended September 30, 2015
 
Nine Months Ended September 30, 2015
 
(In Thousands)
Beginning balance for the period, as reported
$
59,408

 
$
62,741

Activity in the period:
 
 
 
Accretion of liability
571

 
1,413

Retirement obligations incurred
—

 
—

Revisions in estimated cash flows
1,110

 
1,347

Settlement of retirement obligations
(1,113
)
 
(5,525
)
Ending balance
$
59,976

 
$
59,976