DISPOSITIONS OF ASSETS - Assets and Liabilities Held for Sale (Details) - USD ($) $ in Thousands	Dec. 28, 2019	Dec. 29, 2018
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Total assets held for sale	$ 896	$ 24,036
Total liabilities held for sale		4,092
Transit Mix Concrete \| Discontinued operation
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Accounts receivable, net		9,054
Inventory		1,914
Property, plant and equipment, net		6,741
Other assets		6,327
Total assets held for sale		24,036
Accounts payable and accrued expenses		3,800
Other long-term liabilities		292
Total liabilities held for sale		$ 4,092

Amount classified as assets attributable to disposal group held for sale or disposed of.

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