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PROPERTY, PLANT AND EQUIPMENT - Components of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, gross |  | $ 1,283,278
Finance lease right-of-use assets | $ 24,038 |
Property, plant and equipment and finance lease right-of-use asset, gross | 1,288,699 |
Less: accumulated depreciation and amortization | (844,874) |
Less: accumulated depreciation and amortization |  | (878,701)
Property, plant and equipment and finance lease right-of-use asset, net | 443,825 |
Property, plant and equipment, net |  | 404,577
Land |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, gross | 28,703 | 25,490
Landfills |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, gross | 578,814 | 544,663
Landfill operating lease contracts |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, gross | 0 | 121,877
Buildings and improvements |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, gross | 161,316 | 150,885
Machinery and equipment |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, gross | 168,735 | 153,222
Rolling stock |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, gross | 183,145 | 163,758
Containers |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, gross | $ 143,948 | $ 123,383

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