Amdahl Corporation manufactures large-scale, high performance computer systems. In a recent annual report, the balance sheet included the following information (dollars in thousands): Current Year Previous Year Current assets: Receivables, net of allowances of $5,042 and $6,590 in the previous year $504,944 $580,640 In addition, the income statement reported sales revenue of $2,158,755 ($ in thousands) for the current year. All sales are made on a credit basis. The statement of cash flows indicates that cash collected from customers during the current year was $2,230,065 ($ in thousands). There were no recoveries of accounts receivable previously written off