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Segment Reporting - Changes in Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | $ 7,950,406 | $ 7,404,400
Goodwill acquired | 261,325 | 552,762
Goodwill acquisition adjustments | (325) |
Impact of changes in foreign currency | 63,980 | (34,405)
Goodwill, Ending Balance | 8,275,386 | 7,922,757
Western | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 864,602 | 779,455
Goodwill acquired | 2,395 | 64,289
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | 866,997 | 843,744
Southern | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 1,577,114 | 1,559,703
Goodwill acquired | 188,812 | 84,981
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | 1,765,926 | 1,644,684
Eastern | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 1,735,584 | 1,587,491
Goodwill acquired | 44,580 | 139,865
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | 1,780,164 | 1,727,356
Central | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 1,010,574 | 1,008,500
Goodwill acquired | 12,636 | 1,851
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | 1,023,210 | 1,010,351
Canada | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 1,913,091 | 1,723,068
Goodwill acquired | 12,902 | 158,015
Impact of changes in foreign currency | 63,980 | (34,405)
Goodwill, Ending Balance | 1,989,973 | 1,846,678
MidSouth | Reportable Segments |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 849,441 | 746,183
Goodwill acquired | 0 | 103,761
Goodwill acquisition adjustments | (325) |
Impact of changes in foreign currency | 0 | 0
Goodwill, Ending Balance | $ 849,116 | $ 849,944

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