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Benefit Plans - Benefit Plan Related Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | $ 2,700 |  |
Service cost | 2,040 | $ 2,266 | $ 2,037
Interest cost | 3,169 | 3,104 | 1,887
Benefit obligation at end of year | 2,800 | 2,700 |
Change in plan assets at fair value: |  |  |
Fair value of plan assets at beginning of year | 70,676 |  |
Fair value of plan assets at end of year | 78,502 | 70,676 |
Amounts recognized in the Consolidated Balance Sheets consist of: |  |  |
Noncurrent assets | 885 | 811 |
Current benefit liability | (1,106) | (1,094) |
Noncurrent benefit liability | (38,198) | (31,874) |
Net liability recognized | (38,419) | (32,157) |
Pension Plan |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | 102,833 | 67,268 |
Service cost | 2,040 | 2,266 |
Interest cost | 3,169 | 3,104 |
Net actuarial gain/(loss) | 11,286 | (7,321) |
Benefits paid from the trust | (3,323) | (2,479) |
Benefits paid directly by the Company | (1,540) | (1,802) |
Settlements | (1,924) | (1,291) |
Acquisitions | 0 | 48,358 |
Effect of exchange rate movements | 1,735 | (6,918) |
Plan amendment and other | 2,645 | 1,648 |
Benefit obligation at end of year | 116,921 | 102,833 | 67,268
Change in plan assets at fair value: |  |  |
Fair value of plan assets at beginning of year | 70,676 | 48,123 |
Actual return on plan assets | 8,222 | (2,847) |
Employer contributions | 2,233 | 2,341 |
Benefits paid | (3,323) | (2,479) |
Settlements | (1,072) | (1,291) |
Acquisitions | 0 | 31,954 |
Effect of exchange rate movements | 1,766 | (5,125) |
Fair value of plan assets at end of year | 78,502 | 70,676 | $ 48,123
Net amount unfunded status | $ (38,419) | $ (32,157) |

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