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GOODWILL AND INTANGIBLE ASSETS - Amortized Intangible Assets - (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 26, 2022 | Mar. 27, 2021 | Dec. 25, 2021
Components of amortized intangible assets |  |  |
Gross Carrying Amount | $ 291,219 |  | $ 290,680
Accumulated Amortization | 184,534 |  | 178,723
Amortization expense for intangible assets | 5,849 | $ 4,232 |
Estimated amortization expense |  |  |
2022 | 20,044 |  |
2023 | 17,783 |  |
2024 | 15,869 |  |
2025 | 14,435 |  |
2026 | 14,012 |  |
Customer Relationships |  |  |
Components of amortized intangible assets |  |  |
Gross Carrying Amount | 225,201 |  | 224,597
Accumulated Amortization | $ 164,130 |  | $ 160,626
Weighted Average Life | 13 years |  | 13 years
Patents & Proprietary Technology |  |  |
Components of amortized intangible assets |  |  |
Gross Carrying Amount | $ 58,657 |  | $ 58,699
Accumulated Amortization | $ 15,978 |  | $ 13,955
Weighted Average Life | 9 years |  | 9 years
Other |  |  |
Components of amortized intangible assets |  |  |
Gross Carrying Amount | $ 4,511 |  | $ 4,534
Accumulated Amortization | $ 4,087 |  | $ 3,959
Weighted Average Life | 6 years |  | 6 years
Trade Names |  |  |
Components of amortized intangible assets |  |  |
Gross Carrying Amount | $ 2,850 |  | $ 2,850
Accumulated Amortization | $ 339 |  | $ 183
Weighted Average Life | 6 years |  | 7 years

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition 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. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition 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). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition 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). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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