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PROPERTY, PLANT AND EQUIPMENT | 9 Months Ended
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Sep. 30, 2025
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT | PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consisted of the following (in thousands):
| September 30, 2025 |  | December 31, 2024
Land | $ | 193,380 |  |  | $ | 184,191 |
Asset retirement costs (non-landfill) | 40,183 |  |  | 38,705 |
Landfill assets | 271,692 |  |  | 258,138 |
Buildings and improvements (1) | 738,889 |  |  | 719,439 |
Vehicles (2) | 1,563,165 |  |  | 1,455,530 |
Equipment (3) | 2,616,154 |  |  | 2,600,085 |
Construction in progress | 93,818 |  |  | 70,305 |
| 5,517,281 |  |  | 5,326,393 |
Less - accumulated depreciation and amortization | 3,019,681 |  |  | 2,878,452 |
Total property, plant and equipment, net | $ | 2,497,600 |  |  | $ | 2,447,941 |
________________ (1) Balances inclusive of gross right-of-use (“ROU”) assets classified as finance leases of $8.0 million in each period. (2) Balances inclusive of gross ROU assets classified as finance leases of $287.3 million and $230.5 million, respectively. (3) Balances inclusive of gross ROU assets classified as finance leases of $9.2 million in each period. Depreciation expense, inclusive of landfill and finance lease amortization, was $101.3 million and $302.5 million for the three and nine months ended September 30, 2025, respectively. Depreciation expense, inclusive of landfill and finance lease amortization, was $86.2 million and $254.9 million for the three and nine months ended September 30, 2024, respectively. For the three and nine months ended September 30, 2025, capitalized interest recorded by the Company was negligible. For the three and nine months ended September 30, 2024, the Company recorded $3.3 million and $8.6 million, respectively, of capitalized interest mainly due to the construction of a new incinerator in Kimball, Nebraska.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-7 + Details
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