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Summary of Treasury Stock Activity (Detail) (Parenthetical) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Schedule of Treasury Stock [Line Items] |  |  |
Common stock repurchased value as result of restricted stock forfeitures | $ 0.001 | $ 0.001 | $ 0.001
Minimum |  |  |
Schedule of Treasury Stock [Line Items] |  |  |
Market Value of Restricted Shares | 15.21 | 8.03 | 36.81
Maximum |  |  |
Schedule of Treasury Stock [Line Items] |  |  |
Market Value of Restricted Shares | $ 24.14 | $ 32.12 | $ 40.32

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