REVENUE RECOGNITION - Summary of Accounts Receivable, Net (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 02, 2022	Jan. 01, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 217,435	$ 230,714
Construction contract receivables	16,243	47,054
Retention receivables	10,354	13,094
Receivables from related parties	0	292
Accounts receivable	244,032	291,154
Less: Allowance for doubtful accounts	(4,193)	(3,928)
Accounts receivable, net	$ 239,839	287,226
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
General collection and billing period for retention receivables	1 year
Summit Materials, LLC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 217,435	230,714
Construction contract receivables	16,243	47,054
Retention receivables	10,354	13,094
Receivables from related parties	0	292
Accounts receivable	244,032	291,154
Less: Allowance for doubtful accounts	(4,193)	(3,928)
Accounts receivable, net	$ 239,839	$ 287,226
Summit Materials, LLC \| Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
General collection and billing period for retention receivables	1 year

The general collection and billing period for retention receivables.

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Amounts earned by entity but held by customers until projects have been fully completed or near completion and are expected to be billed and collected within one year of the balance sheet date (or the normal operating cycle, whichever is longer).

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- Definition

Trade receivable amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services.

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Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

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Amount of allowance for credit loss on accounts receivable, classified as current.

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Amounts due for billed services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the Company and, at a minimum, one other party. An example would be amounts billed to customers under contracts or programs but not paid as of the balance sheet date.

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