XML 47 R23.htm IDEA: XBRL DOCUMENT v3.6.0.2
Asset Retirement Obligations (Tables)
 12 Months Ended
Dec. 31, 2016
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Change in Asset Retirement Obligation
Changes in ARO are as follows:
(in thousands)
Year Ended December 31,
 
2016
 
2015
Asset Retirement Obligations, Beginning Balance
$
3,612

 
$
2,839

Liabilities Incurred
365

 
599

Revision of Estimate
1,224

 
—

Accretion Expense (1)
214

 
174

Asset Retirement Obligations, Ending Balance
$
5,415

 
$
3,612

(1) 
Accretion expense is included in depreciation and amortization expense in the consolidated statements of operations.