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Income Taxes - Carryforwards Available to Reduce Future Income Taxes (Detail) $ in Thousands	Dec. 31, 2021 USD ($)
U.S. Federal
Carryforward Available To Reduce Future Income Taxes [Line Items]
Net operating loss, tax credit carryforward, amount	$ 899,953
State Taxes
Carryforward Available To Reduce Future Income Taxes [Line Items]
Net operating loss, tax credit carryforward, amount	1,461,613
Interest expense, tax credit carryforward, amount	215,349
Years Of Expiration Carryforward Unlimited
Carryforward Available To Reduce Future Income Taxes [Line Items]
Net operating loss, tax credit carryforward, amount	6,627
Interest expense, tax credit carryforward, amount	$ 494,147