Natural Gas and Oil Exploration, Development and Production Activities - Natural Gas and Oil Exploration, Development and Production Activities (Detail) - USD ($) $ in Thousands		3 Months Ended			12 Months Ended
		Mar. 31, 2025		Mar. 31, 2024	Dec. 31, 2024
Acquisitions:
Acreage purchases	[1]	$ 16,067			$ 57,869
Development	[1]	129,485			577,093
Gas gathering facilities:
Development	[1]	211			4,336
Subtotal	[1]	152,885			678,710
Asset retirement obligations		1,474	[1]	$ 1,462	13,845	[1]
Total costs incurred	[1]	154,359			692,555
Exploration Expense
Exploration:
Drilling	[1]	731			12,569
Expense	[1]	6,044			25,489
Stock-based compensation expense	[1]	$ 347			$ 1,354

[1] (b) Includes costs incurred whether capitalized or expensed.