Stock Transactions and Unit Redemptions - Gross Unit Redemptions and Share Repurchases of Class A Common Stock Table Footnote (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended			3 Months Ended							12 Months Ended
	Dec. 31, 2022	Nov. 30, 2022	Oct. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Weighted-average price for redemption of limited partnership units (in dollars per shares)											$ 3.87	$ 5.83
Repurchase of Class A common stock (in shares)	1,804,000	3,834,000	307,000	12,397,000	8,745,000	0	26,313,000	24,433,000	16,542,000	965,000	27,087,000	68,253,000
Aggregate purchase price of Class A common stock											$ 103,888	$ 365,398	$ 6
Class A Common Stock
Class of Stock [Line Items]
Common stock, shares issued for redemption/cancellation of units (in shares)											20,900,000	27,500,000
Common stock, shares issued for exchange of units (in shares)											10,800,000	32,200,000
Repurchase of Class A common stock (in shares)											27,086,884	68,253,498	2,259
Aggregate purchase price of Class A common stock											$ 103,900	$ 365,400
Weighted-average price of Class A common stock (in dollars per share)											$ 3.84	$ 5.35
Limited Partnership
Class of Stock [Line Items]
Redeemed limited partnership units (in shares)											1,300,000	4,700,000
Aggregate redemption price of limited partnership units											$ 4,900	$ 27,500
Other Ownership Interest
Class of Stock [Line Items]
Redeemed limited partnership units (in shares)											100,000	100,000
Aggregate redemption price of limited partnership units											$ 400	$ 600
Weighted-average price for redemption of founding/working partner units (in dollars per share)											$ 3.41	$ 4.86