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Employee Benefits - Single-Employer Defined Benefit Pension Plan - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jan. 01, 2022 | Jan. 02, 2021 | Dec. 28, 2019
Retirement Benefits [Abstract] |  |  |
Projected benefit obligation | $ 105,874 | $ 113,827 | $ 107,026
Unfunded status | 11,605 | 22,684 |
Net adjustment to OCI | 6,600 | (1,400) |
Decrease in the unfunded obligation | 11,100 |  |
Decrease in actuarial gain | 7,400 |  |
Decrease in investment gains | 4,600 |  |
Employer contributions | 1,100 | 1,493 |
Charge due to current year service and interest cost | 2,000 |  |
Net periodic pension costs (credit) | $ (1,258) | $ (896) |
Expected return on plan assets assumption | 5.20% | 6.00% |

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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920 + Details
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