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CLOSURE AND POST-CLOSURE LIABILITIES (Tables) | 9 Months Ended
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Sep. 30, 2017
Asset Retirement Obligation Disclosure [Abstract] |
Schedule of closure and post-closure liabilities | The changes to closure and post-closure liabilities (also referred to as “asset retirement obligations”) from January 1, 2017 through September 30, 2017 were as follows (in thousands):
| Landfill Retirement Liability |  | Non-Landfill Retirement Liability |  | Total
Balance at January 1, 2017 | $ | 30,630 |  |  | $ | 27,701 |  |  | $ | 58,331 |
Liabilities assumed in acquisitions | — |  |  | 27 |  |  | 27 |
Measurement period adjustments from prior period acquisitions | — |  |  | 596 |  |  | 596 |
New asset retirement obligations | 1,376 |  |  | — |  |  | 1,376 |
Adjustment related to disposition of business | — |  |  | (1,170 | ) |  | (1,170 | )
Accretion | 1,658 |  |  | 1,882 |  |  | 3,540 |
Changes in estimates recorded to statement of operations | (131 | ) |  | (126 | ) |  | (257 | )
Changes in estimates recorded to balance sheet | — |  |  | (284 | ) |  | (284 | )
Expenditures | (2,269 | ) |  | (352 | ) |  | (2,621 | )
Currency translation and other | 182 |  |  | 119 |  |  | 301 |
Balance at September 30, 2017 | $ | 31,446 |  |  | $ | 28,393 |  |  | $ | 59,839 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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