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Goodwill and Other Intangibles - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
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Schedule of Intangible Assets (Excluding Goodwill) [Line Items] |  |
Definite-lived intangibles, gross amount | $ 1,007,905 | $ 783,754
Definite-lived intangibles, accumulated amortization | (200,713) | (178,686)
Intangibles, gross amount | 1,040,045 | 815,894
Trade names |  |
Schedule of Intangible Assets (Excluding Goodwill) [Line Items] |  |
Indefinite-lived intangibles, gross amount | 32,140 | 32,140
Customer relationships |  |
Schedule of Intangible Assets (Excluding Goodwill) [Line Items] |  |
Definite-lived intangibles, gross amount | 926,566 | 711,065
Definite-lived intangibles, accumulated amortization | (163,998) | (147,014)
Other |  |
Schedule of Intangible Assets (Excluding Goodwill) [Line Items] |  |
Definite-lived intangibles, gross amount | 81,339 | 72,689
Definite-lived intangibles, accumulated amortization | $ (36,715) | $ (31,672)

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