Equity-Based Compensation - Restricted Stock Unit Activity (Detail) - Restricted Stock Units [Member] - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested, Number of Shares/Units, Beginning balance	1,030,478	1,045,202
Granted, Number of Shares	535,697	587,239
Cancelled, Number of Shares	(110,380)	(198,740)
Vested, Number of Shares	(342,259)	(403,223)
Unvested, Number of Shares/Units, Ending balance	1,113,536	1,030,478
Unvested, Weighted Average Grant-Date Fair Value, Beginning balance	$ 68.38	$ 54.89
Granted, Weighted Average Grant-Date Fair Value	75.89	76.32
Cancelled, Weighted Average Grant-Date Fair Value	72.23	57.21
Vested, Weighted Average Grant-Date Fair Value	62.76	50.48
Unvested, Weighted Average Grant-Date Fair Value, Ending balance	$ 73.34	$ 68.38