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PENSION AND OTHER POSTRETIREMENT BENEFITS (Schedule of Defined Benefit Plan Obligations and Assets) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 28, 2020 | Jun. 30, 2019 | Jun. 28, 2020 | Jun. 30, 2019 | Mar. 29, 2020 | Dec. 29, 2019 | Mar. 31, 2019
Change in plan assets: |  |  |  |  |  |  |
Fair value of plan assets, beginning of period |  |  | $ 294,589 |  |  |  |
Fair value of plan assets, end of period | $ 269,474 |  | 269,474 |  |  |  |
Pension Benefits |  |  |  |  |  |  |
Change in projected benefit obligation: |  |  |  |  |  |  |
Projected benefit obligation, beginning of period |  |  | 369,066 | $ 157,619 |  |  |
Interest cost | 2,011 | $ 1,467 | 4,050 | 2,934 |  |  |
Actuarial losses |  |  | 28,806 | 13,734 |  |  |
Benefits paid |  |  | (9,965) | (3,020) |  |  |
Curtailments and settlements |  |  | 0 | (5,718) |  |  |
Other |  |  | 11 | 0 |  |  |
Currency translation gain |  |  | (11,001) | 0 |  |  |
Projected benefit obligation, end of period | 380,967 | 165,549 | 380,967 | 165,549 |  |  |
Change in plan assets: |  |  |  |  |  |  |
Fair value of plan assets, beginning of period |  |  | 294,589 | 102,414 |  |  |
Actual return on plan assets |  |  | (9,948) | 12,504 |  |  |
Contributions by employer |  |  | 5,173 | 3,924 |  |  |
Benefits paid |  |  | (9,965) | (3,020) |  |  |
Other |  |  | (526) | 0 |  |  |
Currency translation loss |  |  | (9,849) | 0 |  |  |
Fair value of plan assets, end of period | 269,474 | 110,104 | 269,474 | 110,104 |  |  |
Funded status: |  |  |  |  |  |  |
Unfunded benefit obligation, end of period | (111,493) |  | (111,493) |  |  | $ (74,477) |
Amounts recognized in the Condensed Consolidated Balance Sheets at end of period: |  |  |  |  |  |  |
Current liability | (9,356) |  | (9,356) |  |  | (14,967) |
Long-term liability | (102,137) |  | (102,137) |  |  | (59,510) |
Recognized liability | (111,493) |  | (111,493) |  |  | (74,477) |
Amounts recognized in accumulated other comprehensive loss at end of period: |  |  |  |  |  |  |
Net actuarial loss | 102,530 | 55,685 | 102,530 | 55,685 | $ 58,239 | 58,239 | $ 54,343
Other Benefits |  |  |  |  |  |  |
Change in projected benefit obligation: |  |  |  |  |  |  |
Projected benefit obligation, beginning of period |  |  | 1,527 | 1,462 |  |  |
Interest cost | 9 | 13 | 18 | 26 |  |  |
Actuarial losses |  |  | 64 | 96 |  |  |
Benefits paid |  |  | (80) | (74) |  |  |
Curtailments and settlements |  |  | 0 | 0 |  |  |
Other |  |  | 0 | 0 |  |  |
Currency translation gain |  |  | 0 | 0 |  |  |
Projected benefit obligation, end of period | 1,529 | 1,510 | 1,529 | 1,510 |  |  |
Change in plan assets: |  |  |  |  |  |  |
Fair value of plan assets, beginning of period |  |  | 0 | 0 |  |  |
Actual return on plan assets |  |  | 0 | 0 |  |  |
Contributions by employer |  |  | 80 | 74 |  |  |
Benefits paid |  |  | (80) | (74) |  |  |
Other |  |  | 0 | 0 |  |  |
Currency translation loss |  |  | 0 | 0 |  |  |
Fair value of plan assets, end of period | 0 | 0 | 0 | 0 |  |  |
Funded status: |  |  |  |  |  |  |
Unfunded benefit obligation, end of period | (1,529) |  | (1,529) |  |  | (1,527) |
Amounts recognized in the Condensed Consolidated Balance Sheets at end of period: |  |  |  |  |  |  |
Current liability | (157) |  | (157) |  |  | (158) |
Long-term liability | (1,372) |  | (1,372) |  |  | (1,369) |
Recognized liability | (1,529) |  | (1,529) |  |  | (1,527) |
Amounts recognized in accumulated other comprehensive loss at end of period: |  |  |  |  |  |  |
Net actuarial loss | $ 155 | $ 62 | $ 155 | $ 62 | $ 91 | $ 91 | $ (34)

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