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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2024
Stock-Based Compensation [Abstract] |
Summary of Stock Option Activity |
|  |  |  | Weighted- |  | Weighted-Average |  |  |
|  |  |  | Average |  | Remaining |  |  |
|  | Number |  | Exercise Price |  | Contractual |  | Aggregate
|  | of Shares |  | Per Share |  | Life (in years) |  | Intrinsic Value
Outstanding at December 31, 2023 |  | 1,340 |  | $ | 168.32 |  |  |  |  |
Exercised |  | (201) |  | $ | 134.67 |  |  |  |  |
Forfeited/canceled |  | (2) |  | $ | 197.91 |  |  |  |  |
Outstanding at September 30, 2024 |  | 1,137 |  | $ | 174.24 |  | 1.2 |  | $ | 76,424
Exercisable at September 30, 2024 |  | 1,115 |  | $ | 172.68 |  | 1.1 |  | $ | 76,160
Unvested at September 30, 2024 |  | 22 |  | $ | 252.81 |  | 8.3 |  | $ | 264
Summary of Restricted Stock Unit and Performance Based Restricted Stock Unit Activity |
|  | RSUs |  | PSUs (1)
|  |  |  | Weighted-Average |  |  |  | Weighted-Average
|  | Number of |  | Grant Date Fair |  | Number of |  | Grant Date Fair
|  | Shares |  | Value per Share |  | Shares |  | Value per Share
|  | (in thousands) |  |  |  |  | (in thousands) |  |  |
Outstanding at December 31, 2023 |  | 267 |  | $ | 269.08 |  | 368 |  | $ | 298.46
Granted |  | 271 |  | $ | 216.26 |  | 59 |  | $ | 291.51
PSU adjustment (2) |  | — |  | $ | — |  | 11 |  | $ | 236.63
Vested |  | (117) |  | $ | 271.06 |  | (155) |  | $ | 236.32
Forfeited/canceled |  | (17) |  | $ | 240.54 |  | (5) |  | $ | 361.20
Outstanding at September 30, 2024 |  | 404 |  | $ | 234.15 |  | 278 |  | $ | 313.75
(1)PSUs represent the target number of shares granted that are issuable at the end of the three year performance period. Fair value for a portion of the PSUs was calculated using a Monte Carlo simulation model. (2)PSU adjustment represents the net PSUs awarded above or below their target grants resulting from the achievement of performance targets established at the grant date.

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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