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Accounts Receivable, Contract Assets, and Contract Liabilities - Accounts Receivable (Details) - USD ($)
$ in Thousands
Apr. 30, 2022
Jan. 29, 2022
Receivables [Abstract]    
Trade accounts receivable $ 366,587 $ 330,811
Unbilled accounts receivable 607,960 545,493
Retainage 21,165 20,318
Total 995,712 896,622
Less: allowance for doubtful accounts (761) (724)
Accounts receivable, net $ 994,951 $ 895,898