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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax [Line Items]          
Effective tax rate   233.99% 28.19% 26.91%  
Increase (decrease) in net deferred tax liability   $ 37,500      
Income tax expense for excess tax deficiencies   7,100 $ 3,800 $ 1,300  
Net operating loss carryforwards for federal and state tax   35,400 31,500 27,800  
Operating loss carryforwards subject to expiration   22,300      
Operating loss carryforwards not subject to expiration   13,100      
Uncertain tax position liability   6,168 7,409 $ 11,185 $ 10,972
Unrecognized tax benefits that would impact effective tax rate   6,200      
Increase (decrease) in uncertain tax position   1,200 3,800    
Company's accrued liability for interest and penalties related to income tax liabilities   1,000 600    
Deferred tax assets   7,274      
Net deferred tax liabilities     $ 30,176    
Capital losses incurred   1,700,000      
Capital loss carryforwards   1,800,000      
Income Tax , Penalties and Interest Expense   $ 500      
Earliest Tax Year [Member]          
Income Tax [Line Items]          
Federal and state income tax examinations   2015      
Latest Tax Year [Member]          
Income Tax [Line Items]          
Federal and state income tax examinations     2019    
Scenario, Forecast [Member]          
Income Tax [Line Items]          
Increase (decrease) in uncertain tax position $ 1,100        
Minimum [Member]          
Income Tax [Line Items]          
Expiration period of operating loss carryforwards   2022      
Maximum [Member]          
Income Tax [Line Items]          
Expiration period of operating loss carryforwards   2040