Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.20.4
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Taxes [Line Items]        
Corporate income tax rate percent       35.00%
Income tax benefits due to NOL carryback provision $ 309,376 $ (79,912) $ (95,429)  
Accumulated undistributed earnings and profits 160,487      
One-time transition tax accumulated undistributed earnings and profits 113,364      
Valuation allowance against deferred assets – non-current 203,606 60,359    
Gross unrecognized tax benefits, including interest and penalties 51,643 14,294    
Unrecognized tax benefit that if recognized would impact effective tax rate 51,643 14,294    
Accrued for interest and penalties $ 5,114 $ 4,058    
Foreign        
Income Taxes [Line Items]        
Tax credit carryforwards expiring year description A majority of our foreign tax credit carryforwards expire in 2024 and 2027, with the remainder expiring in 2029.      
CARES Act        
Income Taxes [Line Items]        
Income tax benefits due to NOL carryback provision $ 187,515