Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	12 Months Ended
Dec. 25, 2021	Dec. 26, 2020	Dec. 27, 2019
Excess of the purchase price paid over the estimated fair values of the assets and liabilities assumed	$ 112,529,000	$ 112,529,000
Impairment of goodwill	0	0
Impairment of intangible asset	0
Intangible assets amortization	$ 253,000	$ 253,000	$ 127,000
Customer Relationships
Useful life of finite lived intangibles	15 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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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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