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Non-controlling interests - Additional Information (Detail) - shares
6 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2023
FAH, LLC    
Noncontrolling Interest [Line Items]    
Ownership percentage 96.60% 94.90%
Class A common stock    
Noncontrolling Interest [Line Items]    
Common stock, shares outstanding (in shares) 52,488,000 50,549,000
Class A common stock | FAH, LLC    
Noncontrolling Interest [Line Items]    
Common stock, shares outstanding (in shares) 52,500,000 50,500,000