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Stockholders' Equity - Summary of Restricted Stock Unit Activity (Detail)
12 Months Ended
Dec. 31, 2023
$ / shares
shares
Options Outstanding  
Shares, Unvested at December 31, 2022 | shares 531,034
Shares Awarded | shares 212,338
Shares, Vested | shares (195,672)
Shares, Forfeited/cancelled | shares (73,380)
Shares, Unvested at December 31, 2023 | shares 474,320
Shares, Vested and expected to vest at December 31, 2023 | shares 413,249 [1]
Weighted-Average Remaining Contractual Term (in years)  
Weighted Average, Unvested at December 31,2022 | $ / shares $ 142.57
Weighted Average, Awarded | $ / shares 170.03
Weighted Average, Vested | $ / shares 124.58
Weighted Average, Forfeited/Cancelled | $ / shares 177.81
Weighted Average, Unvested at December 31, 2023 | $ / shares 155.59
Weighted Average, Vested and expected to vest at December 31, 2023 | $ / shares $ 152.74 [1]
[1] Represents the number of vested stock units as of December 31, 2023, plus the number of unvested stock units expected to vest as of December 31, 2023, based on the unvested outstanding stock units at December 31, 2023 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.