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PROPERTY, PLANT, AND EQUIPMENT | 12 Months Ended
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Dec. 31, 2024
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT, AND EQUIPMENT | PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consisted of the following (in thousands):
| December 31, 2024 |  | December 31, 2023
Land | $ | 184,191 |  |  | $ | 174,891 |
Asset retirement costs (non-landfill) | 38,705 |  |  | 27,167 |
Landfill assets | 258,138 |  |  | 253,180 |
Buildings and improvements (1) | 719,439 |  |  | 630,525 |
Vehicles (2) | 1,455,530 |  |  | 1,276,567 |
Equipment (3) | 2,600,085 |  |  | 2,388,370 |
Construction in progress | 70,305 |  |  | 213,601 |
| 5,326,393 |  |  | 4,964,301 |
Less - accumulated depreciation and amortization | 2,878,452 |  |  | 2,770,983 |
Total property, plant and equipment, net | $ | 2,447,941 |  |  | $ | 2,193,318 |
___________________________________ (1) Balances inclusive of gross ROU assets classified as finance leases of $8.0 million in both periods. (2) Balances inclusive of gross ROU assets classified as finance leases of $230.5 million and $151.7 million, respectively. (3) Balances inclusive of gross ROU assets classified as finance leases of $9.2 million in both periods. Depreciation expense, inclusive of landfill and finance lease amortization was $346.5 million, $315.5 million and $297.4 million for the years ended December 31, 2024, 2023 and 2022, respectively. The Company recorded $11.2 million, $6.6 million and $3.4 million of capitalized interest in 2024, 2023 and 2022, respectively, mainly due to the construction of the 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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