Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Apr. 04, 2015	Mar. 29, 2014
Cash flows from operating activities:
Net income	$ 96,061	$ 70,302
Adjustments to reconcile net income to net cash provided by operating activities:
Provisions for doubtful accounts on accounts receivable	159us-gaap_ProvisionForDoubtfulAccounts	1,059us-gaap_ProvisionForDoubtfulAccounts
Provisions on inventory	1,368us-gaap_InventoryWriteDown	1,139us-gaap_InventoryWriteDown
Stock-based compensation	8,455us-gaap_ShareBasedCompensation	8,129us-gaap_ShareBasedCompensation
Deferred income taxes	2,828us-gaap_DeferredIncomeTaxExpenseBenefit	(2,218)us-gaap_DeferredIncomeTaxExpenseBenefit
Depreciation	11,445us-gaap_Depreciation	8,819us-gaap_Depreciation
Amortization of intangibles	11,104us-gaap_AdjustmentForAmortization	11,523us-gaap_AdjustmentForAmortization
Change in operating assets and liabilities, net of acquisitions:
Decrease in accounts receivable	24,802	30,147
Increase in inventories	(21,369)us-gaap_IncreaseDecreaseInInventories	(24,163)us-gaap_IncreaseDecreaseInInventories
Increase in other current assets	(1,776)	(8,008)
Increase in other assets	(4,891)	(7,169)
Decrease in accounts payable and other current liabilities	(25,518)	(11,491)
Increase in deferred revenue and customer advances	42,555	34,356
Increase in other liabilities	9,367	3,330
Net cash provided by operating activities	154,590	115,755
Cash flows from investing activities:
Additions to property, plant, equipment and software capitalization	(21,410)	(21,395)
Business acquisitions, net of cash acquired		(3,615)
Purchases of investments	(794,422)us-gaap_PaymentsToAcquireInvestments	(607,028)us-gaap_PaymentsToAcquireInvestments
Maturities of investments	759,386	512,089
Net cash used in investing activities	(56,446)	(119,949)
Cash flows from financing activities:
Proceeds from debt issuances	120,073	10,053
Payments on debt	(100,000)us-gaap_RepaymentsOfLongTermDebt	(1,295)us-gaap_RepaymentsOfLongTermDebt
Proceeds from stock plans	11,269	35,322
Purchases of treasury shares	(91,025)	(92,572)
Excess tax benefit related to stock option plans	2,757	8,507
Payments of derivative contracts	(3,348)	(314)
Net cash used in financing activities	(60,274)	(40,299)
Effect of exchange rate changes on cash and cash equivalents	(19,249)	(921)
Increase (decrease) in cash and cash equivalents	18,621	(45,414)
Cash and cash equivalents at beginning of period	422,177	440,796
Cash and cash equivalents at end of period	$ 440,798	$ 395,382

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-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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