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REMEDIAL LIABILITIES | 6 Months Ended
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Jun. 30, 2017
Environmental Remediation Obligations [Abstract] |
REMEDIAL LIABILITIES | REMEDIAL LIABILITIES The changes to remedial liabilities for the six months ended June 30, 2017 were as follows (in thousands):
| Remedial Liabilities for Landfill Sites |  | Remedial Liabilities for Inactive Sites |  | Remedial Liabilities (Including Superfund) for Non-Landfill Operations |  | Total
Balance at January 1, 2017 | $ | 1,777 |  |  | $ | 64,151 |  |  | $ | 62,079 |  |  | $ | 128,007 |
Measurement period adjustments from prior period acquisitions | — |  |  | — |  |  | 504 |  |  | 504 |
Accretion | 43 |  |  | 1,332 |  |  | 967 |  |  | 2,342 |
Changes in estimates recorded to statement of operations | (36 | ) |  | (120 | ) |  | 289 |  |  | 133 |
Expenditures | (19 | ) |  | (2,068 | ) |  | (3,205 | ) |  | (5,292 | )
Currency translation and other | (1 | ) |  | 2,712 |  |  | (2,246 | ) |  | 465 |
Balance at June 30, 2017 | $ | 1,764 |  |  | $ | 66,007 |  |  | $ | 58,388 |  |  | $ | 126,159 |
In the six months ended June 30, 2017, there were no significant charges (benefits) resulting from changes in estimates for remedial liabilities.

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- Definition The entire disclosure for environmental loss contingencies, such as presence of hazardous waste, relevant information from reports issued by regulators, and estimated costs to achieve compliance with regulatory requirements. This element may be used for all of an entity's disclosures about environmental loss contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2175709 + Details
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