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PROPERTY AND EQUIPMENT
 12 Months Ended
Dec. 31, 2024
Property, Plant and Equipment [Abstract]  
PROPERTY AND EQUIPMENT PROPERTY AND EQUIPMENT
A summary of property and equipment is as follows:
 December 31,
 20242023
Land$56,010 $47,863 
Landfills859,602 786,130 
Finance lease right-of-use assets 128,159 101,770 
Buildings and improvements303,170 262,204 
Machinery and equipment318,391 287,175 
Rolling stock490,571 396,247 
Containers311,236 266,705 
Total property and equipment (1)
2,467,139 2,148,094 
Less: accumulated depreciation and amortization (1,302,324)(1,167,541)
Property and equipment, net
$1,164,815 $980,553 
(1)Includes construction-in-process of $104,686 and $74,408 at December 31, 2024 and December 31, 2023, respectively, that have not been placed in service and, therefore, have not begun depreciating.
Depreciation expense for fiscal years 2024, 2023 and 2022 was $133,928, $99,249 and $78,139, respectively. Landfill amortization expense for fiscal years 2024, 2023 and 2022 was $44,498, $40,419 and $31,619, respectively.