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Commitments, Contingencies and Legal Proceedings (Tables) | 3 Months Ended
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Mar. 31, 2019
Commitments And Contingencies Disclosure [Abstract] |
Schedule of Reserves | Reserves for the Site. Our reserve for past and future government oversight costs and long-term monitoring and maintenance is set forth below:
|  | Three months ended March 31 |
In thousands |  |  | 2019 |  |  |  |  | 2018 |
Balance at January 1, |  | $ | 45,001 |  |  |  | $ | 43,144 |
Payments |  |  | (20,535 | ) |  |  |  | (2,536 | )
Reserve adjustment |  |  | (2,509 | ) |  |  |  | — |
Accretion |  |  | 56 |  |  |  |  | — |
Balance at March 31, |  | $ | 22,013 |  |  |  | $ | 40,608 |

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