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Shareholders' Deficit - Schedule of Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 25, 2024 | Dec. 27, 2023 | Dec. 28, 2022
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |
Balance as of beginning period | $ (62,686) | $ (37,116) | $ (65,265)
Settlement loss recognized | 26 | 35 |
Plan closure loss | 0 | (74) |
Income tax (expense) benefit | (3,265) | (616) | (3,643)
Balance as of end of period | (34,025) | (62,686) | (37,116)
Effective Interest Rate Swaps |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |
Amortization of net loss | 5,900 |  |
Expect reclassification within next twelve months | 4,500 |  |
Pensions |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |
Balance as of beginning period | (337) | (555) | (900)
Benefit obligation actuarial gain (loss) | 83 | (98) | 261
Settlement loss recognized | 26 | 35 | 74
Income tax (expense) benefit | (44) | 151 | (113)
Balance as of end of period | (209) | (337) | (555)
Amortization of net loss |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |
Amortization of net loss | 63 | 56 | 123
Plan closure loss |  | 74 |
Derivatives |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |
Balance as of beginning period | (41,322) | (42,142) | (53,570)
Amortization of net loss | (5,916) | (5,028) | 1,310
Changes in the fair value of cash flow derivatives | 17,869 | 6,262 | 13,619
Income tax (expense) benefit | (3,221) | (767) | (3,530)
Balance as of end of period | (31,830) | (41,322) | (42,142)
Derivatives | Dedesignated Interest Rate Swaps Member |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |
Balance as of end of period | 63,400 |  |
Derivatives |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |
Amortization of net loss | 760 | 353 | 29
Derivatives | Dedesignated Interest Rate Swaps Member |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |
Amortization of net loss | 800 | 400 | 100
Expect reclassification within next twelve months | 3,100 |  |
Accumulated Other Comprehensive Loss |  |  |
AOCI Attributable To Parent, Net Of Tax [Roll Forward] |  |  |
Balance as of beginning period | (41,659) | (42,697) | (54,470)
Balance as of end of period | $ (32,039) | $ (41,659) | $ (42,697)

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- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480870/815-30-50-1 + Details
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