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FAIR VALUE OF FINANCIAL INSTRUMENTS (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Assets: |  |
Restricted assets - landfill closure | $ 1,220 | $ 1,002
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring |  |
Assets: |  |
Restricted assets - landfill closure |  | 1,002
Interest rate swaps | 0 |
Total asset fair value | 1,220 |
Liabilities: |  |
Interest rate swaps | 0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring | Restricted assets - landfill closure |  |
Assets: |  |
Restricted assets - landfill closure | 1,220 |
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring |  |
Assets: |  |
Restricted assets - landfill closure |  | 0
Interest rate swaps | 401 |
Total asset fair value | 401 |
Liabilities: |  |
Interest rate swaps | 123 |
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Restricted assets - landfill closure |  |
Assets: |  |
Restricted assets - landfill closure | 0 |
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring |  |
Assets: |  |
Restricted assets - landfill closure |  | $ 0
Interest rate swaps | 0 |
Total asset fair value | 0 |
Liabilities: |  |
Interest rate swaps | 0 |
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Restricted assets - landfill closure |  |
Assets: |  |
Restricted assets - landfill closure | $ 0 |

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313 + Details
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