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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 28, 2019 | Sep. 29, 2018
Cash flows from operating activities: |  |
Net income | $ 391,529 | $ 408,642
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Stock-based compensation | 28,917 | 28,184
Deferred income taxes | 1,817 | 278
Depreciation | 42,168 | 44,710
Amortization of intangibles | 38,151 | 38,101
Change in operating assets and liabilities: |  |
Decrease in accounts receivable | 57,897 | 36,893
Increase in inventories | (83,973) | (47,826)
Increase in other current assets | (6,259) | (21,091)
Increase in other assets | (9,302) | (3,251)
Decrease in accounts payable and other current liabilities | (493) | (93,637)
Increase in deferred revenue and customer advances | 34,926 | 23,085
Effect of the 2017 Tax Cuts & Jobs Act | (3,229) | 12,450
Decrease in other liabilities | (40,957) | (3,641)
Net cash provided by operating activities | 451,192 | 422,897
Cash flows from investing activities: |  |
Additions to property, plant, equipment and software capitalization | (110,205) | (64,215)
Asset acquisitions |  | (31,486)
Investment in unaffiliated companies | (7,250) | (7,615)
Purchases of investments | (35,523) | (908,147)
Maturities and sales of investments | 978,419 | 2,269,181
Net cash provided by investing activities | 825,441 | 1,257,718
Cash flows from financing activities: |  |
Proceeds from debt issuances | 600,362 | 10
Payments on debt | (390,482) | (850,000)
Payments of debt issuance costs | (2,932) |
Proceeds from stock plans | 34,311 | 42,377
Purchases of treasury shares | (1,909,700) | (816,649)
Proceeds from (payments for) derivative contracts | 6,900 | (2,181)
Net cash used in financing activities | (1,661,541) | (1,626,443)
Effect of exchange rate changes on cash and cash equivalents | (6,723) | (7,118)
(Decrease) increase in cash and cash equivalents | (391,631) | 47,054
Cash and cash equivalents at beginning of period | 796,280 | 642,319
Cash and cash equivalents at end of period | $ 404,649 | $ 689,373

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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition Increase (decrease) in tax assets and liabilities related to Tax Cuts and Jobs Act of 2017. + References No definition available. + Details
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- Definition Payments To Acquire Unaffiliated Companies + References No definition available. + Details
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