| Dec 30, 2011 | Jan 3, 2014 | Jan 2, 2015 | Jan 1, 2016 | Dec 30, 2016 | Dec 29, 2017 | Dec 28, 2018 | Jan 3, 2020 | Jan 1, 2021 | Dec 31, 2021 | Dec 30, 2022 |
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Net income | - | - | - | - | - | - | - | 82 | 83 | 101 | 102 |
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Depreciation, Depletion and Amortization, Nonproduction | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 6 | 7 |
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Amortization of premiums and accretion of discounts on short-term investments | -0 | -0 | -1 | -1 | -0 | - | 0 | 1 | 0 | 0 | - |
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Provision for contract losses and doubtful accounts | 2 | 2 | 2 | 1 | 2 | 3 | 2 | 2 | 2 | 2 | 3 |
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Stock-based compensation | 10 | 13 | 13 | 13 | 13 | 16 | 17 | 17 | 17 | 19 | 20 |
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Deferred income tax provision | -4 | -3 | -6 | -4 | -3 | 12 | -4 | -3 | -4 | -6 | -7 |
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Accounts receivable | 3 | -7 | 11 | 3 | 1 | 25 | -2 | 17 | -7 | 30 | 33 |
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Prepaid expenses and other current assets | 2 | 5 | 5 | -0 | 1 | -3 | 11 | 3 | 9 | 4 | 6 |
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Change in operating leases | - | - | - | - | - | - | - | -0 | 0 | 0 | 0 |
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Accounts payable and accrued liabilities | -1 | 3 | 6 | 8 | -0 | 6 | -5 | 7 | -3 | 8 | 2 |
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Accrued payroll and employee benefits | 9 | 5 | 7 | 3 | 3 | 6 | 10 | 12 | 5 | 20 | 6 |
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Deferred revenues | - | - | - | - | - | - | - | 4 | -1 | 8 | -1 |
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Net cash provided by operating activities | 47 | - | - | - | - | 68 | 91 | 108 | 103 | 125 | 94 |
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Capital expenditures | 4 | 6 | 5 | 5 | 14 | 5 | 16 | 23 | 5 | 7 | 12 |
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Purchase of short-term investments | 27 | 33 | 5 | 44 | 51 | 29 | 53 | 39 | 40 | 35 | - |
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Maturity of short-term investments | - | 19 | 12 | 22 | 38 | 16 | 43 | 66 | 50 | 80 | - |
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Net cash (used in) / provided by investing activities | -29 | - | - | - | - | -18 | -26 | 4 | 5 | 38 | -12 |
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Payroll taxes for restricted stock units | 4 | 6 | 6 | 7 | 8 | 10 | 9 | 11 | 15 | 16 | 13 |
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Repurchase of common stock | 41 | 26 | 31 | 23 | 24 | 12 | 28 | 22 | 40 | 7 | 156 |
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Exercise of stock-based payment awards | 2 | 2 | 2 | 3 | 2 | 2 | 1 | 3 | 7 | 3 | 2 |
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Dividends and dividend equivalent rights | - | 8 | 13 | 16 | 19 | 22 | 27 | 34 | 40 | 43 | 49 |
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Net cash used in financing activities | -39 | - | - | - | - | -41 | -62 | -63 | -88 | -63 | -216 |
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Effect of foreign currency exchange rates on cash and cash equivalents | - | - | - | - | - | - | - | 0 | 1 | 0 | -2 |
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Net increase in cash and cash equivalents | - | - | - | - | - | - | - | 49 | 21 | 100 | -136 |
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