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Income Taxes - Difference Between Actual Income Tax Expense and Tax Provision Computed by Applying Statutory Federal Income Tax Rate to Income Before Taxes (Detail) - USD ($)
$ in Thousands
4 Months Ended 8 Months Ended 12 Months Ended
Apr. 23, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
(Loss) income before income tax expense:        
U.S. $ 686,202 $ (1,048) $ (336,880) $ (339,072)
Foreign (2,687,595) (174,642) (939,210) (62,942)
Loss before income tax (expense) benefit (2,001,393) (175,690) (1,276,090) (402,014)
Expected income tax benefit at federal statutory rate (420,292) (36,895) (267,979) (84,423)
Effect of tax rate changes   9,871 (7,003) (74,168)
Reorganization items (225,563) 266 7,871  
Post-petition interest expense (6,771)   (16,778)  
Effect of foreign operations 163,236 79,600 136,262 3,129
Valuation allowance 515,421 (45,919) 17,331 11,650
Uncertain tax positions, settlements and adjustments relating to prior years (67,626) (7,220) 107,148 96,960
Other 2,191 1,951 1,962 2,052
Income tax benefit $ (39,404) $ 1,654 $ (21,186) $ (44,800)