GOODWILL AND INTANGIBLE ASSETS - Amortized Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 25, 2021	Dec. 31, 2022	Dec. 25, 2021	Dec. 26, 2020
Components of amortized intangible assets
Gross Carrying Amount	$ 290,680	$ 286,432	$ 290,680
Accumulated Amortization	178,723	169,602	178,723
Amortization expense for intangible assets		22,120	21,320	$ 18,147
Estimated Amortization Expense
2023		20,825
2024		18,888
2025		17,454
2026		12,933
2027		9,695
Customer Relationships
Components of amortized intangible assets
Gross Carrying Amount	224,597	222,716	224,597
Accumulated Amortization	160,626	$ 145,502	$ 160,626
Weighted Average Life		13 years	13 years
Impairment charge for intangible assets	4,483
Patents & Proprietary Technology
Components of amortized intangible assets
Gross Carrying Amount	58,699	$ 58,404	$ 58,699
Accumulated Amortization	13,955	$ 21,291	$ 13,955
Weighted Average Life		9 years	9 years
Trade Name
Components of amortized intangible assets
Gross Carrying Amount	2,850	$ 2,850	$ 2,850
Accumulated Amortization	183	$ 645	$ 183
Weighted Average Life		7 years	7 years
Other
Components of amortized intangible assets
Gross Carrying Amount	4,534	$ 2,462	$ 4,534
Accumulated Amortization	$ 3,959	$ 2,164	$ 3,959
Weighted Average Life		5 years	6 years

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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