The per share amount of a dividend declared, but not paid, as of the financial reporting date.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Subsequent Events (Detail) - $ / shares		1 Months Ended			3 Months Ended							12 Months Ended
Subsequent Events (Detail) - $ / shares	Jan. 02, 2024	Dec. 31, 2023	Nov. 30, 2023	Oct. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 13, 2024
Subsequent Event [Line Items]
Repurchase of Class A common stock (in shares)		0	1,204,000	4,269,000	8,087,000	9,814,000	846,000	5,945,000	12,397,000	8,745,000	0	24,220,000	27,087,000
Common Stock \| Subsequent Event
Subsequent Event [Line Items]
Dividend declared per share (in dollars per share)															$ 0.01
Class A Common Stock
Subsequent Event [Line Items]
Repurchase of Class A common stock (in shares)												23,250,551	27,086,884	68,253,498
Stock repurchased, weighted average price (in dollars per share)												$ 4.94	$ 3.84
Class A Common Stock \| Subsequent Event \| Reporting Person \| Related Party
Subsequent Event [Line Items]
Repurchase of Class A common stock (in shares)	136,891
Stock repurchased, weighted average price (in dollars per share)	$ 6.98