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Shareholders' Equity - (Components of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 24, 2020 | Dec. 28, 2022 | Dec. 29, 2021 | Dec. 30, 2020
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Balance as of beginning period |  | $ (65,265) | $ (130,446) | $ (138,064)
Settlement loss recognized |  | (74) | 0 |
Income tax (expense) benefit |  | (3,643) | (2,642) | 9,432
Balance as of end of period |  | (37,116) | (65,265) | (130,446)
Effective Interest Rate Swaps |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Expect reclassification within next twelve months |  | 3,300 |  |
Pensions |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Balance as of beginning period |  | (900) | (978) | (781)
Benefit obligation actuarial gain (loss) |  | 261 | (46) | (448)
Settlement loss recognized |  | 74 |  | 95
Income tax (expense) benefit |  | (113) | (35) | 67
Balance as of end of period |  | (555) | (900) | (978)
Amortization of net loss |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Reclassification |  | 123 | 159 | 89
Derivatives |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Balance as of beginning period |  | (53,570) | (59,427) | (33,179)
Reclassification |  | 1,310 | 4,023 | 3,160
Changes in the fair value of cash flow derivatives |  | 13,619 | 4,275 | (46,910)
Income tax (expense) benefit |  | (3,530) | (2,607) | 9,365
Balance as of end of period |  | (42,142) | (53,570) | (59,427)
Derivatives | Dedesignated Interest Rate Swaps Member |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Balance as of end of period |  | 64,200 |  |
Derivatives |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Reclassification | $ 7,400 |  |  | 7,354
Derivatives | Dedesignated Interest Rate Swaps Member |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Reclassification |  |  |  | 7,400
Derivatives |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Reclassification |  | 29 | 166 | 783
Derivatives | Dedesignated Interest Rate Swaps Member |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Reclassification |  | 100 | 200 |
Expect reclassification within next twelve months |  | 300 |  |
Accumulated Other Comprehensive Loss |  |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |  |
Balance as of beginning period |  | (54,470) | (60,405) | (33,960)
Balance as of end of period |  | $ (42,697) | $ (54,470) | $ (60,405)

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