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Segment Reporting - Changes in Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | $ 7,404,400 | $ 6,902,297
Goodwill acquired | 552,762 | 411,441
Goodwill acquisition adjustments |  | (3,665)
Impact of changes in foreign currency | (34,405) | 3,011
Goodwill, Ending Balance | 7,922,757 | 7,313,084
Southern | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 1,559,703 | 1,547,894
Goodwill acquired | 84,981 | 0
Goodwill acquisition adjustments |  | (1,450)
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | 1,644,684 | 1,546,444
Western | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 779,455 | 732,335
Goodwill acquired | 64,289 | 45,072
Goodwill acquisition adjustments |  | 0
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | 843,744 | 777,407
Central | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 1,008,500 | 1,003,470
Goodwill acquired | 1,851 | 3,605
Goodwill acquisition adjustments |  | 0
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | 1,010,351 | 1,007,075
Eastern | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 1,587,491 | 1,189,111
Goodwill acquired | 139,865 | 361,398
Goodwill acquisition adjustments |  | 0
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | 1,727,356 | 1,550,509
Canada | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 1,723,068 | 1,684,670
Goodwill acquired | 158,015 | 0
Goodwill acquisition adjustments |  | (2,215)
Impact of changes in foreign currency | (34,405) | 3,011
Goodwill, Ending Balance | 1,846,678 | 1,685,466
MidSouth | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 746,183 | 744,817
Goodwill acquired | 103,761 | 1,366
Goodwill acquisition adjustments |  | 0
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | $ 849,944 | $ 746,183

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