Asset retirement obligations (Tables)

12 Months Ended

Dec. 31, 2023

Asset Retirement Obligation Disclosure [Abstract]

Schedule of asset retirement obligations and the changes due to accretion expense

The following table presents the balances for asset retirement obligations and the changes due to accretion expense (in thousands):

	December 31, 2023		December 31, 2022
Asset retirement obligations, beginning of period	$	39,823	$	34,929
Additions		237		—
Accretion expense		1,774		1,494
Revisions in estimated cash flows		—		3,400
Asset retirement obligations, end of period	$	41,834	$	39,823