XML 93 R35.htm IDEA: XBRL DOCUMENT v3.23.1
Note 11 - Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Change in Asset Retirement Obligation [Table Text Block]

(in thousands)

 

As of December 31, 2022

  

As of December 31, 2021

 

Beginning balance

 $40,694  $17,334 

Accretion

  1,958   1,627 

Additions

  6,134   14,564 

Revisions

  (43)  7,169 

Settlements

  (6,577)   

Foreign currency gain (loss)

  (165)   

Ending balance

 $42,001  $40,694