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Receivables, net (Details) - USD ($)
$ in Thousands
Oct. 02, 2021
Jan. 02, 2021
Current and long-term receivables balances    
Accounts receivable $ 184,298 $ 196,990
Unbilled accounts receivable 146,550 144,364
Long-term receivables 3,832 3,655
Total receivables 334,680 345,009
Less allowance for doubtful accounts (3,657) (2,867)
Total receivables, net $ 331,023 $ 342,142