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GOODWILL AND INTANGIBLE ASSETS
9 Months Ended
Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND INTANGIBLE ASSETS GOODWILL AND INTANGIBLE ASSETS
A summary of the activity and balances related to goodwill by operating segment is as follows:
December 31,
2024 (1)
Acquisitions
Business Combination
Adjustments
September 30,
2025
Eastern$89,544 $20,989 $— $110,533 
Western357,143 6,983 2,455 366,581 
Mid-Atlantic510,917 74,297 (818)584,396 
Resource Solutions 44,662 9,690 — 54,352 
$1,002,266 $111,959 $1,637 $1,115,862 
(1)December 31, 2024 amounts, which include allocated goodwill between operating segments using a relative fair value approach, have been reclassified between regional operating segments to conform to the current period presentation. See Note 13, Segment Reporting for further disclosure.
Summaries of intangible assets by type follow:
Covenants
Not-to-Compete
Customer RelationshipsTrade NamesTotal
Balance, September 30, 2025
Intangible assets
$75,505 $426,189 $26,309 $528,003 
Less accumulated amortization(40,905)(161,387)(16,766)(219,058)
$34,600 $264,802 $9,543 $308,945 
 Covenants
Not-to-Compete
Customer RelationshipsTrade NamesTotal
Balance, December 31, 2024
Intangible assets
$71,568 $377,600 $25,795 $474,963 
Less accumulated amortization(34,398)(115,305)(11,792)(161,495)
$37,170 $262,295 $14,003 $313,468 
Intangible amortization expense was $18,980 and $57,562 during the three and nine months ended September 30, 2025, respectively, and $14,043 and $38,845 during the three and nine months ended September 30, 2024, respectively.
A summary of intangible amortization expense estimated for each of the next five fiscal years following fiscal year 2024 and thereafter is estimated as follows:
Estimated Future Intangible Amortization Expense as of September 30, 2025 
For the remainder of the fiscal year ending December 31, 2025
$18,811 
Fiscal year ending December 31, 2026$69,537 
Fiscal year ending December 31, 2027$60,766 
Fiscal year ending December 31, 2028$51,711 
Fiscal year ending December 31, 2029$39,968 
Thereafter$68,152