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RETIREMENT BENEFIT PLANS (Tables) | 12 Months Ended
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Dec. 31, 2018
Retirement Benefits [Abstract] |
Schedule of Net Periodic Benefit Costs | Net periodic benefit costs for the Company’s defined benefit pension plans for the years ended December 31, 2018 and 2017 included the following (amounts in thousands):
| Year ended December 31,
| 2018 |  | 2017
Service cost | $ | 2,704 |  |  | $ | 565 |
Interest cost | 351 |  |  | 95 |
Expected return on plan assets | (944 | ) |  | (224 | )
Recognized net actuarial loss | 8 |  |  | 8 |
Net period benefit cost | $ | 2,119 |  |  | $ | 444 |
Schedule of Weighted Average Assumptions Used | The following weighted average assumptions were used to develop net periodic pension benefit costs and the actuarial present values of projected pension benefit obligations for the years ended December 31, 2018 and 2017, respectively:
| As of December 31,
| 2018 |  | 2017
Discount rate | 1.00 | % |  | 0.74 | %
Expected return on plan assets | 3.40 | % |  | 3.08 | %
Rate of compensation increase | 1.70 | % |  | 1.70 | %
Schedule of Benefit Obligations and Plan Assets | The following sets forth the change in projected benefit obligations and the change in plan assets for the years ended December 31, 2018 and 2017 and a reconciliation of the funded status at December 31, 2018 and 2017, respectively (amounts in thousands):
| Year ended December 31,
| 2018 |  | 2017
Change In Projected Benefit Obligations |  |  |
Projected benefit obligations, beginning of year | $ | 47,661 |  |  | $ | 668 |
Interest cost | 351 |  |  | 95 |
Service cost | 2,704 |  |  | 565 |
Actuarial loss | 762 |  |  | (12 | )
Employee contribution | 641 |  |  | 180 |
Premiums paid | — |  |  | (89 | )
Benefit payment | (1,483 | ) |  | (19 | )
Plans transferred in | 2,280 |  |  | 46,448 |
Effect of foreign currency exchange rates | (374 | ) |  | (175 | )
Projected benefit obligations, end of year | $ | 52,542 |  |  | $ | 47,661 |
| Year ended December 31,
| 2018 |  | 2017
Change In Plan Assets |  |  |
Plan assets at fair value, beginning of year | $ | 26,943 |  |  | $ | — |
Actual return on plan assets | 1,802 |  |  | 82 |
Employer contributions | 1,720 |  |  | 450 |
Employee contributions | 641 |  |  | 180 |
Benefits paid | (1,463 | ) |  | — |
Premiums paid | — |  |  | (89 | )
Plans transferred in | 1,589 |  |  | 26,477 |
Effect of foreign currency exchange rates | (129 | ) |  | (157 | )
Plan assets at fair value, end of year | $ | 31,103 |  |  | $ | 26,943 |
Schedule of Funded Status |
| Year ended December 31,
| 2018 |  | 2017
Reconciliation Of Funded Status |  |  |
Fair value of plan assets | $ | 31,103 |  |  | $ | 26,943 |
Benefit obligations | 52,542 |  |  | 47,661 |
Unfunded benefit obligations | $ | 21,439 |  |  | $ | 20,718 |
Schedule of Expected Benefit Payments and Minimum Contribution on Unfunded Plans | The following table is the summary of expected future benefit payments (in thousands):
2019 | $ | 1,410 |
2020 | 1,516 |
2021 | 1,317 |
2022 | 1,433 |
2023 | 1,878 |
Next five years | 2,978 |

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