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Business Segment and Geographical Information - Schedule of Distribution of Income from Operations by Geographical Area (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Segment Reporting Information [Line Items] |  |  |  |  |
Income from operations | $ 86,584 | $ 285,434 | $ 515,353 | $ 800,788 |
Amortization of intangible assets | (58,700) | (58,000) | (176,700) | (291,000) | $ (350,300)
Goodwill impairment | (165,300) | 0 | (165,300) | 0 | $ 0
Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income from operations | 310,572 | 343,460 | 857,344 | 1,091,801 |
Amortization of intangible assets | (58,688) | (58,026) | (176,691) | (291,013) |
Ireland |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income from operations | 172,766 | 211,855 | 511,921 | 687,137 |
Rest of Europe |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income from operations | 51,515 | 55,040 | 94,884 | 148,774 |
U.S. |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income from operations | 69,443 | 59,326 | 206,303 | 201,015 |
Rest of World |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income from operations | $ 16,848 | $ 17,239 | $ 44,236 | $ 54,875 |

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