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v3.23.1

Stock-based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Restricted Stock Unit and Performance Stock Unit Activity | Restricted stock unit ("RSU") and performance stock unit ("PSU") awards activity is presented in the following tables.
| RSU Shares (in 000's) | PSU Shares (in 000's) |  | Total Shares (in 000's) |  | Weighted Average Grant Date Fair Value | Weighted Average Remaining Contractual Life (in years)
Unvested as of December 31, 2022 | 841.3 |  | 567.0 |  |  | 1,408.3 |  |  | $ | 170.78 |  | 1.79
Granted | — |  | 31.0 |  |  | 31.0 |  |  | 111.33 |  |
Vested | (145.6) |  | (257.2) |  |  | (402.8) |  |  | 115.92 |  |
Forfeited | (7.3) |  | (24.4) |  |  | (31.7) |  |  | 125.84 |  |
Unvested as of March 31, 2023 | 688.4 |  | 316.4 |  |  | 1,004.8 |  |  | $ | 192.36 |  | 1.66
Unvested as of December 31, 2021 | 912.4 |  | 646.0 |  |  | 1,558.4 |  |  | $ | 152.27 |  | 1.99
Granted | — |  | — |  |  | — |  |  | — |  |
Vested | (122.8) |  | (175.1) |  |  | (297.9) |  |  | 150.29 |  |
Forfeited | (2.8) |  | (4.8) |  |  | (7.6) |  |  | 174.32 |  |
Unvested as of March 31, 2022 | 786.8 |  | 466.1 |  |  | 1,252.9 |  |  | $ | 152.62 |  | 1.84

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- Definition Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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