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Redeemable Non-Controlling Interest - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
9 Months Ended 12 Months Ended
Mar. 12, 2020
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Noncontrolling Interest [Line Items]        
Stock issued during period, shares, new issues   72,000,000 171,500,000  
Percentage of compound interest per annum on the preferred share issue price 10.00%      
Series A Preferred Stock [Member] | CCC Cayman [Member]        
Noncontrolling Interest [Line Items]        
Stock issued during period, shares, new issues 1,818      
Shares issued, price per share $ 7,854      
Stock issued during period, value, new issues $ 14.2      
Percentage of shares reserved for issuance under employee incentive plan       8.60%
Series A Preferred Stock [Member] | CCC Cayman [Member] | Ownership Interest [Member]        
Noncontrolling Interest [Line Items]        
Ownership percentage by noncontrolling owners       10.00%