XML 28 R15.htm IDEA: XBRL DOCUMENT v3.22.4
PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENTA summary of property, plant and equipment is as follows:
 December 31,
 20222021
Land$37,321 $34,118 
Landfills730,914 677,023 
Finance lease right-of-use assets 90,362 78,851 
Buildings and improvements209,234 187,810 
Machinery and equipment243,359 207,305 
Rolling stock276,282 252,642 
Containers197,834 179,949 
1,785,306 1,617,698 
Less: accumulated depreciation and amortization (1,064,756)(973,094)
$720,550 $644,604 
Depreciation expense for fiscal years 2022, 2021 and 2020 was $78,139, $62,342 and $54,370, respectively. Landfill amortization expense for fiscal years 2022, 2021 and 2020 was $31,619, $30,295 and $27,520, respectively.