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Discontinued Operations - Schedule of Components of Discontinued Operations of Balance Sheets (Details) - USD ($)
$ in Thousands
Dec. 28, 2020
Dec. 30, 2019
Discontinued Operations And Disposal Groups [Abstract]    
Cash and cash equivalents $ 12,513 $ 20,336
Restricted cash 35,412  
Accounts receivable, net 12 66
Contract assets 40,072 33,635
Inventories 4,988 8,266
Prepaid expenses and other current assets 4,593 5,269
Property, plant and equipment, net 328,648 344,728
Operating lease right-of-use assets   1,983
Goodwill 68,267 68,267
Definite-lived intangibles, net 5,520 6,328
Deposits and other non-current assets 6,291 4,291
Total assets classified as held for sale 506,316 493,169
Accounts payable 142,636 153,700
Accrued salaries, wages and benefits 9,392 13,606
Other current liabilities 8,890 18,085
Operating lease liabilities   1,104
Other long-term liabilities 303 426
Total liabilities classified as held for sale $ 161,221 $ 186,921