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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 | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Class of Stock [Line Items] |  |  |  |  |  |  |
Weighted-average price for redemption of limited partnership units (in dollars per shares) |  |  |  |  | $ 5.83 | $ 3.03 |
Repurchase of Class A common stock (in shares) | 26,313,000 | 24,433,000 | 16,542,000 | 965,000 | 68,253,000 |  |
Aggregate purchase price of Class A common stock |  |  |  |  | $ 365,398 | $ 6 | $ 1,236
Class A Common Stock |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Common stock, shares issued for redemption/cancellation of units (in shares) |  |  |  |  | 27,500,000 | 9,500,000 |
Common stock, shares issued for exchange of units (in shares) |  |  |  |  | 32,200,000 | 3,700,000 |
Repurchase of Class A common stock (in shares) |  |  |  |  | 68,253,498 | 2,259 | 233,172
Aggregate purchase price of Class A common stock |  |  |  |  | $ 365,400 | $ 6 |
Weighted-average price of Class A common stock (in dollars per share) |  |  |  |  | $ 5.35 | $ 2.58 |
Limited Partnership |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Redeemed limited partnership units (in shares) |  |  |  |  | 4,700,000 | 1,800,000 |
Aggregate redemption price of limited partnership units |  |  |  |  | $ 27,500 | $ 5,500 |
Other Ownership Interest |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Redeemed limited partnership units (in shares) |  |  |  |  | 100,000 | 700,000 |
Aggregate redemption price of limited partnership units |  |  |  |  | $ 600 | $ 1,300 |
Weighted-average price for redemption of founding/working partner units (in dollars per share) |  |  |  |  | $ 4.86 | $ 1.79 |

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- Definition Total change in each class of partners' capital accounts during the year due to redemptions and adjustments to redemption value. All partners include general, limited and preferred partners. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187171-122770 + Details
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