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DEFINED BENEFIT RETIREMENT PLAN (Tables) | 12 Months Ended
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Dec. 31, 2022
Retirement Benefits [Abstract] |
Schedule of Changes in PBO and Fair Value of Plan Assets for Pension Plan | (19) DEFINED BENEFIT RETIREMENT PLAN – CONTINUED Changes in the PBO and fair value of plan assets for the pension plan for the period from December 26, 2020 to December 25, 2021 were as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Projected |  | ​ | ​ |  | ​ | ​
​ | ​ | Benefit | ​ | Plan | ​ | Funded
​ | ​ | Obligation | ​ | Assets | ​ | status
Fair Value at December 26, 2020 | ​ | $ | 860,173 | ​ | $ | 741,650 | ​ | $ | (118,523)
Employer contributions | ​ | ​ | — | ​ | ​ | 1,924 | ​ |  | ​
Interest cost |  | ​ | 9,896 |  | ​ | — |  | ​ |
Actual return on plan assets |  | ​ | — |  | ​ | 48,637 |  | ​ |
Benefits paid |  | ​ | (22,952) |  | ​ | (22,952) |  | ​ |
Actuarial gain |  | ​ | (77,379) |  | ​ | — |  | ​ |
Currency translation |  | ​ | (8,032) |  | ​ | (8,089) |  | ​ |
Fair Value at December 25, 2021 | ​ | $ | 761,706 | ​ | $ | 761,170 | ​ | $ | (536)
​ Changes in the PBO and fair value of plan assets for the pension plan for the period from December 25, 2021 to December 31, 2022 were as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Projected |  | ​ | ​ |  | ​ | ​
​ | ​ | Benefit | ​ | Plan | ​ | Funded
​ | ​ | Obligation | ​ | Assets | ​ | status
Fair Value at December 25, 2021 | ​ | $ | 761,706 | ​ | $ | 761,170 | ​ | $ | (536)
Employer contributions | ​ | ​ | — | ​ | ​ | 17,155 | ​ |  | ​
Interest cost |  | ​ | 12,551 |  | ​ | — |  | ​ |
Actual return on plan assets |  | ​ | — |  | ​ | (228,493) |  | ​ |
Benefits paid |  | ​ | (20,175) |  | ​ | (20,175) |  | ​ |
Actuarial gain |  | ​ | (248,252) |  | ​ | — |  | ​ |
Currency translation |  | ​ | (70,119) |  | ​ | (69,730) |  | ​ |
Fair Value at December 31, 2022 | ​ | $ | 435,711 | ​ | $ | 459,927 | ​ | $ | 24,216
​
Schedule of Pre-Tax Amounts Recognized in Accumulated Other Comprehensive Income (Loss) | Pre-tax amounts recognized in accumulated other comprehensive income (loss) as of December 31, 2022 and December 25, 2021 consisted of actuarial gains (losses):
​ | ​ | ​ | ​
Balance December 26, 2020 |  | $ | (165,258)
Actuarial gain | ​ |  | 102,529
Prior service costs amortization | ​ |  | 550
Currency translation gain | ​ |  | 1,239
Balance December 25, 2021 | ​ |  | (60,940)
Actuarial loss | ​ |  | (2,915)
Prior service costs amortization | ​ |  | 493
Currency translation gain | ​ |  | 5,451
Balance December 31, 2022 | ​ | $ | (57,911)
​
Schedule of Weighted-Average Actuarial Assumptions Used to Determine the Benefit Obligation | The weighted-average actuarial assumptions used to determine the benefit obligation at December 31, 2022 and December 25, 2021 were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Percentages |  | 2022 |  | 2021
Discount rate |  | 4.80 | % | ​ | 1.90 | %
Salary increase |  | N/A |  | ​ | N/A | ​
CPI inflation |  | 2.35 | % | ​ | 2.70 | %
RPI inflation |  | 3.25 | % | ​ | 3.30 | %
​
Schedule of Components of the Net Periodic Pension (Benefit) Expense | ​ The components of the net periodic pension benefit for the fiscal years ended December 31, 2022 and December 25, 2021 were as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​
Net periodic (benefit) expense: | ​ | 2022 |  | 2021
Interest cost | ​ | $ | 12,551 | ​ | $ | 9,896
Expected return on plan assets | ​ |  | (23,131) | ​ |  | (27,763)
Amortization of prior service cost | ​ |  | 493 | ​ |  | 550
Amortization of actuarial loss | ​ |  | — | ​ |  | 2,750
Net periodic benefit | ​ | $ | (10,087) | ​ | $ | (14,567)
​
Schedule of Weighted-Average Actuarial Assumptions Used to Determine Expense | The weighted-average actuarial assumptions used to determine expense are as follows for fiscal years 2022 and 2021: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Percentages |  | 2022 | ​ | 2021
Discount rate for benefit obligations |  | 1.90 | % | ​ | 1.40 | %
Discount rate for interest cost | ​ | 1.80 | % | ​ | 1.15 | %
Expected return on plan assets |  | 3.48 | % | ​ | 3.96 | %
CPI Inflation |  | 2.70 | % | ​ | 2.00 | %
RPI Inflation |  | 3.30 | % | ​ | 2.90 | %
​
Schedule of Expected Pension Benefit Payments | The following table details expected pension benefit payments for the years 2023 through 2032:
​ | ​ | ​ | ​
2023 |  | $ | 20,432
2024 | ​ |  | 21,036
2025 | ​ |  | 21,641
2026 | ​ |  | 22,366
2027 | ​ |  | 22,970
Years 2028 - 2032 | ​ |  | 125,733
​
Schedule of Pension Plan Assets Measured at Fair Value on a Recurring Basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Quoted Prices in |  | Significant Other |  | Significant |  | ​ | ​
​ | ​ | Active Markets | ​ | Observable | ​ | Unobservable | ​ | ​ | ​
​ | ​ | for Identical | ​ | Inputs | ​ | Inputs | ​ | ​ | ​
December 31, 2022 | ​ | Inputs (Level 1) | ​ | (Level 2) | ​ | (Level 3) | ​ | Total
Plan assets at fair value: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Temporary cash investments | ​ | $ | 5,916 | ​ | $ | — | ​ | $ | — | ​ | $ | 5,916
Total plan net assets at fair value | ​ | $ | 5,916 | ​ | $ | — | ​ | $ | — | ​ | $ | 5,916
Plan assets at NAV: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Leveraged inflation-linked gilt funds | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 206,555
Corporate bonds | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 63,953
Corporate stock | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 55,379
Secured income asset funds | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 128,124
Total plan assets at NAV | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 454,011
Total plan assets | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ | $ | 459,927
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Quoted Prices in |  | Significant Other |  | Significant |  | ​ | ​
​ | ​ | Active Markets | ​ | Observable | ​ | Unobservable | ​ | ​ | ​
​ | ​ | for Identical | ​ | Inputs | ​ | Inputs | ​ | ​ | ​
December 25, 2021 | ​ | Inputs (Level 1) | ​ | (Level 2) | ​ | ​ | (Level 3) | ​ | Total
Plan assets at fair value: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Temporary cash investments | ​ | $ | 14,000 | ​ | $ | — | ​ | $ | — | ​ | $ | 14,000
Total plan net assets at fair value | ​ | $ | 14,000 | ​ | $ | — | ​ | $ | — | ​ | $ | 14,000
Plan assets at NAV: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Leveraged inflation-linked gilt funds | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 283,288
Corporate bonds | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 107,945
Corporate stock | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 212,730
Secured income asset funds | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 143,207
Total plan assets at NAV | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  | 747,170
Total plan assets | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ | $ | 761,170

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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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