Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Deferred tax assets, Net operating loss carryforwards	$ 365,602	$ 579,781
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	12,751	12,900
Deferred Tax Assets, Other	29,421	10,691
Total deferred tax assets	407,774	603,372
Deferred Tax Assets, Valuation Allowance	0	14,474	$ 14,500
Total deferred tax assets, net of valuation allowance	407,774	588,898
Deferred tax liabilities, Property and equipment	(2,536,938)	(2,204,378)
Deferred Tax Liabilities, Other	(10,720)	(4,674)
Total deferred tax liabilities	2,547,658	2,209,052
Deferred income tax liabilities, net	$ 2,139,884	$ 1,620,154