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Accounts Receivable, Contract Assets, and Contract Liabilities - Accounts Receivable (Details) - USD ($) $ in Thousands | Oct. 30, 2021 | Jan. 30, 2021
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Receivables [Abstract] |  |
Trade accounts receivable | $ 363,770 | $ 352,501
Unbilled accounts receivable | 576,365 | 492,324
Retainage | 21,145 | 14,974
Total | 961,280 | 859,799
Less: allowance for doubtful accounts | (1,539) | (1,676)
Accounts receivable, net | $ 959,741 | $ 858,123

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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
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