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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Tax Contingency [Line Items]    
Valuation allowance for deferred tax asset $ 13,218 $ 12,892
Net operating loss carryforwards, valuation allowance 9,300  
Undistributed earnings of subsidiaries 248,900  
Unrecognized deferred income tax liabilities 12,400  
Federal    
Income Tax Contingency [Line Items]    
Federal capital losses 9,300  
Net operating loss carryforwards, valuation allowance 3,900  
Net operating loss carryforwards 4,900  
State    
Income Tax Contingency [Line Items]    
Net operating loss carryforwards, valuation allowance 4,900  
Net operating loss carryforwards $ 6,100