Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2024
Dec. 31, 2021
Dec. 31, 2020
Income Tax Contingency [Line Items]      
Federal statutory rate 21.00%    
Unrecognized tax benefits $ 20.1    
Subsidiaries [Member]      
Income Tax Contingency [Line Items]      
Income tax examination notice amount   $ 24.4 $ 17.2