Stock-Based Incentive Plans - Movement in Outstanding Shares of Restricted Class A Common Stock and Weighted-Average Grant Date Fair Value Per Share (Detail) - Restricted Class A Common Stock	9 Months Ended
	Sep. 30, 2024 $ / shares shares
Restricted Class A Common Stock
Beginning balance (in shares) | shares	2,180,181
Granted (in shares) | shares	504,385
Vested (in shares) | shares	(954,881)
Forfeited (in shares) | shares	(102,484)
Ending balance (in shares) | shares	1,627,201
Weighted-Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share) | $ / shares	$ 24.41
Granted (in dollars per share) | $ / shares	21.13
Vested (in dollars per share) | $ / shares	25.21
Forfeited (in dollars per share) | $ / shares	24.18
Ending balance (in dollars per share) | $ / shares	$ 22.94