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Goodwill and Other Intangible Assets - Gross Carrying Amounts and Accumulated Amortization of Other Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Definite-lived intangible assets: |  |  |
Gross Carrying Amount | $ 8,472,803 | $ 7,886,142 |
Accumulated Amortization | (4,987,807) | (4,365,043) |
Net Carrying Amount | 3,484,996 | 3,521,099 |
Indefinite-lived intangible assets: |  |  |
Intangible assets, gross carrying amount | 9,805,803 | 9,219,142 |
Intangible assets, accumulated amortization | (4,987,807) | (4,365,043) |
Intangible assets, net carrying amount | 4,817,996 | 4,854,099 |
Contracts and related customer relationships |  |  |
Definite-lived intangible assets: |  |  |
Gross Carrying Amount | 6,754,810 | 6,158,349 |
Accumulated Amortization | (4,012,248) | (3,464,926) |
Net Carrying Amount | 2,742,562 | 2,693,423 | $ 2,634,211
Indefinite-lived intangible assets: |  |  |
Intangible assets, accumulated amortization | $ (4,012,248) | $ (3,464,926) |
Contracts and related customer relationship useful life (in years) | 15 years | 15 years |
Dealer relationships |  |  |
Definite-lived intangible assets: |  |  |
Gross Carrying Amount | $ 1,518,020 | $ 1,518,020 |
Accumulated Amortization | (776,413) | (697,324) |
Net Carrying Amount | 741,607 | 820,696 |
Indefinite-lived intangible assets: |  |  |
Intangible assets, accumulated amortization | $ (776,413) | (697,324) |
Contracts and related customer relationship useful life (in years) | 19 years |  |
Other |  |  |
Definite-lived intangible assets: |  |  |
Gross Carrying Amount | $ 199,973 | 209,773 |
Accumulated Amortization | (199,146) | (202,793) |
Net Carrying Amount | 827 | 6,980 |
Indefinite-lived intangible assets: |  |  |
Intangible assets, accumulated amortization | $ (199,146) | (202,793) |
Contracts and related customer relationship useful life (in years) | 10 years |  |
Trade Names |  |  |
Indefinite-lived intangible assets: |  |  |
Trade name | $ 1,333,000 | $ 1,333,000 |

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