Summary of Significant Accounting Policies - Additional Information (Detail)		12 Months Ended
		Dec. 31, 2022 USD ($) Counterparties Customer Counterparty	Dec. 31, 2021 USD ($) Customer	Dec. 31, 2020 USD ($) Customer
Summary Of Significant Accounting Policies [Line Items]
Net brokered margin gain (loss)		$ (5,400,000)	$ 1,100,000	$ (14,200,000)
Allowance for doubtful accounts on accounts receivable		314,000	568,000
Bad debt (income) expense		(250,000)	200,000	400,000
Net book value of unproved properties	[1]	800,592,000	837,334,000	859,766,000
Abandonment and impairment of unproved properties		28,608,000	7,206,000	19,334,000
Depreciation expense		$ 2,200,000	2,400,000	$ 2,600,000
Lessee, operating lease, contract term		12 months
Marketable securities held in deferred compensation plans		$ 57,700,000	69,600,000
Deferred financing cost related to bank credit facility			5,200,000
Other investments including surface acreage		$ 10,400,000	$ 11,500,000
Number of customers accounted more than 10% of total oil and gas revenues | Customer		0	1	0
Number of counterparties | Counterparty		6
Number of financial institutions included in counter parties | Counterparty		14
Number of counterparties amount payable | Counterparties		4
Number of counterparties amount receivable | Counterparties		2
Impairment of proved properties and other assets		$ 0	$ 0	$ 78,955,000
Existing derivative contracts		We did not materially modify any existing derivative contracts in 2022, 2021 or 2020.
Reported Value Measurement
Summary Of Significant Accounting Policies [Line Items]
Marketable securities held in deferred compensation plans	[2]	$ 57,717,000	$ 69,606,000
Counterparties in a Liability position
Summary Of Significant Accounting Policies [Line Items]
Net derivative liability		4,000,000.0
Counterparties in a Receivable position
Summary Of Significant Accounting Policies [Line Items]
Derivative amount receivable		$ 3,300,000
Other property and equipment | Minimum
Summary Of Significant Accounting Policies [Line Items]
Useful life of assets		3 years
Other property and equipment | Maximum
Summary Of Significant Accounting Policies [Line Items]
Useful life of assets		10 years

[1] Includes capitalized asset retirement costs and the associated accumulated amortization.

[2] Marketable securities, which are held in our deferred compensation plans, are actively traded on major exchanges and are updated based on end of period closing prices which is a Level 1 input.