CLOSURE AND POST-CLOSURE LIABILITIES |
changes to closure and post-closure liabilities (also referred to as "asset retirement obligations") from January 1, 2014 through December 31, 2015 were as follows (in thousands): | | | | | | | | | | | | | | Landfill Retirement Liability | | Non-Landfill Retirement Liability | | Total | Balance at January 1, 2014 | $ | 27,604 |
| | $ | 19,481 |
| | $ | 47,085 |
| New asset retirement obligations | 3,595 |
| | — |
| | 3,595 |
| Accretion | 2,583 |
| | 1,875 |
| | 4,458 |
| Changes in estimates recorded to statement of income | (722 | ) | | 73 |
| | (649 | ) | Changes in estimates recorded to balance sheet | (1,304 | ) | | — |
| | (1,304 | ) | Expenditures | (1,580 | ) | | (546 | ) | | (2,126 | ) | Currency translation and other | (244 | ) | | (114 | ) | | (358 | ) | Balance at December 31, 2014 | 29,932 |
| | 20,769 |
| | 50,701 |
| Liabilities assumed in TFI acquisition | — |
| | 1,676 |
| | 1,676 |
| New asset retirement obligations | 3,151 |
| | — |
| | 3,151 |
| Accretion | 2,516 |
| | 2,122 |
| | 4,638 |
| Changes in estimates recorded to statement of income (loss) | (162 | ) | | 205 |
| | 43 |
| Changes in estimates recorded to balance sheet | 2,942 |
| | — |
| | 2,942 |
| Expenditures | (5,946 | ) | | (177 | ) | | (6,123 | ) | Currency translation and other | (410 | ) | | (369 | ) | | (779 | ) | Balance at December 31, 2015 | $ | 32,023 |
| | $ | 24,226 |
| | $ | 56,249 |
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All of the landfill facilities included in the above table were active as of December 31, 2015 and 2014. There were no significant charges (benefits) in 2015 and 2014 resulting from changes in estimates for closure and post-closure liabilities. New asset retirement obligations incurred during 2015 and 2014 were discounted at the credit-adjusted risk-free rate of 5.99% and 6.54%, respectively. Anticipated payments (based on current estimated costs and anticipated timing of necessary regulatory approvals to commence work on closure and post-closure activities) for each of the next five years and thereafter are as follows (in thousands): | | | | | Year ending December 31, | | 2016 | $ | 8,160 |
| 2017 | 9,061 |
| 2018 | 9,001 |
| 2019 | 7,621 |
| 2020 | 3,442 |
| Thereafter | 262,365 |
| Undiscounted closure and post-closure liabilities | 299,650 |
| Less: Discount at credit-adjusted risk-free rate | (156,145 | ) | Less: Undiscounted estimated closure and post-closure liabilities relating to airspace not yet consumed | (87,256 | ) | Present value of closure and post-closure liabilities | $ | 56,249 |
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