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Capitalization (Detail) - USD ($) $ in Thousands, shares in Millions | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2024 | Feb. 15, 2024 | Dec. 31, 2023 | Feb. 28, 2023
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Aggregate repurchases of Class A common stock |  | $ 125,370 | $ 44,004 | $ 292,863 |  |  |  |
Class A common stock | 2023 Stock Repurchase Program |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  | $ 700,000
Stock repurchase program, remaining amount authorized | $ 575,000 |  |  |  | $ 575,000 | $ 700,000 | $ 53,000 |
Additional amount authorized for share repurchase |  |  |  |  |  | $ 647,000 |  |
Repurchases of Class A common stock (in shares) | 0.0 |  |  |  | 1.5 |  |  |
Aggregate repurchases of Class A common stock |  |  |  |  | $ 125,000 |  |  |

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