Summary of Principal Components of Net Deferred Income Tax Liability (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Deferred income taxes	$ 2,793	$ 0
Deferred Tax Assets, Operating Loss Carryforwards	203,243	180,531
Total net deferred tax assets	36,532	8,266
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations	63	1,188
Deferred Tax Assets, Property, Plant and Equipment	24,585	0
Deferred Tax Liabilities, Property, Plant and Equipment	3,357	7,728
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits	0	301
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	0	467
Deferred Tax Liabilities, Investments	35,968	0
Deferred Tax Liabilities, ROU Obligations	0	538
Less: Valuation allowance	(205,617)	(179,006)
Deferred Tax Asset, Interest Carryforward	13,747	0
Deferred Tax Assets, Other	18	1,484
Deferred Tax Assets, ROU Assets	0	564
Deferred Tax Assets, Gross	242,149	187,272
Deferred Tax Assets, Derivative Instruments	493	2,737
Deferred Tax and Other Liabilities, Noncurrent	$ 39,325	$ 8,266