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PENSIONS - Reconciliation of Funded Status (Details) - Pensions - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Reconciliation of funded status: |  |  |
Projected benefit obligation | $ (46,093) | $ (51,171) | $ (50,376)
Fair value of plan assets | 13,121 | 13,634 | $ 12,503
Funded (unfunded) status at end of year | (32,972) | (37,537) |
Equity securities |  |  |
Reconciliation of funded status: |  |  |
Fair value of plan assets | 12,291 | 9,921 |
Debt securities |  |  |
Reconciliation of funded status: |  |  |
Fair value of plan assets | 0 | 3,047 |
Cash |  |  |
Reconciliation of funded status: |  |  |
Fair value of plan assets | 830 | 666 |
UK Scheme |  |  |
Reconciliation of funded status: |  |  |
Projected benefit obligation | (9,818) | (11,654) |
Fair value of plan assets | 12,291 | 12,968 |
Funded (unfunded) status at end of year | 2,473 | 1,314 |
Marine Scheme |  |  |
Reconciliation of funded status: |  |  |
Projected benefit obligation | (36,275) | (39,517) |
Fair value of plan assets | 830 | 666 |
Funded (unfunded) status at end of year | $ (35,445) | $ (38,851) |

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