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Stock-Based Compensation - Summary of SARs Activity (Details) - Stock Appreciation Rights (SARs) - USD ($) $ / shares in Units, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |
Beginning Balance (in shares) | 6,437,000 |
Granted (in shares) | 5,061,000 |
Exercised (in shares) | 0 |
Canceled and Forfeited (in shares) | 237,000 |
Ending Balance (in shares) | 11,261,000 | 6,437,000
Vested and Exercisable (in shares) | 0 |
Weighted-Average Exercise Price Per Share |  |
Beginning Balance (in dollars per share) | $ 55.75 |
Granted (in dollars per share) | 218.86 |
Exercised (in dollars per share) | 0 |
Canceled and Forfeited (in dollars per share) | 53.81 |
Ending Balance (in dollars per share) | 129.10 | $ 55.75
Vested and Exercisable (in dollars per share) | $ 0 |
Shares outstanding, weighted average remaining contractual life (in years) | 7 years 3 months 18 days | 6 years 8 months 12 days
Vested and exercisable, weighted average remaining contractual life (in years) | 0 years |
SARs Aggregate Intrinsic Value | $ 831,612 | $ 127,976
Vested and Exercisable, Aggregate Intrinsic Value | $ 0 |

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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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