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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Components of Property, Plant and Equipment We provide for depreciation and amortization using the straight-line method by charges to operations in amounts that allocate the cost of the assets over their estimated useful lives as follows:
Asset ClassificationEstimated
Useful Life
Buildings and improvements
10-30 years
Machinery and equipment
5-10 years
Rolling stock
5-10 years
Containers
5-12 years
Furniture and Fixtures
3-8 years
A 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