v3.26.1
Supplemental Cash Flow Information - Supplemental Cash Flow Information (Detail) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
 [1]
Net cash provided from operating activities included:      
Federal income taxes paid to taxing authorities $ (3,700) $ (3,800)  
State income taxes paid to taxing authorities (5,400) (3,300)  
Interest paid (51,379) (58,235)  
Non-cash investing activities included:      
Increase in asset retirement costs capitalized 1,599 [1] 2,327 $ 8,367
Increase (decrease) in accrued capital expenditures $ 4,220 $ (16,670)  
[1]

(b) Includes costs incurred whether capitalized or expensed.