Stock-based Compensation - Restricted Shares and Units Outstanding and Activity During the Period (Detail) - $ / shares	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2021
Weighted-Average Grant Date Fair Value
Granted (in dollars per share)	$ 52.43	$ 62.84	$ 50.63	$ 38,180,000
Restricted Stock Units (RSUs)
RSUs Outstanding
Beginning balance (in shares)		1,200,000
Granted (in shares)		400,000
Performance awards (in shares)		100,000
Released (in shares)		(400,000)
Canceled/Forfeited (in shares)		(100,000)
Ending balance (in shares)		1,200,000	1,200,000
Vested and expected to vest after December 31, 2022 (in shares)		1,200,000
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share)		$ 45.60
Granted (in dollars per share)		62.84
Performance awards (in dollars per share)		35.78
Released (in dollars per share)		39.77
Canceled/Forfeited (in dollars per share)		51.85
Ending balance (in dollars per share)		53.14	$ 45.60
Vested and expected to vest after end of year (in dollars per share)		$ 52.95
Performance Conditions | Minimum
Weighted-Average Grant Date Fair Value
Percentage of shares expected to be vested		10000.00%