CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
Mar. 30, 2019	Mar. 31, 2018
Cash flows relating to operating activities
Net income	$ 55,688	$ 53,245
Loss from discontinued operations, net of income taxes	0	(23)
Income from continuing operations, net of income taxes	55,688	53,268
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	45,358	33,210
Stock-based compensation	12,899	10,541
Deferred income taxes	7,781	(782)
Gain on venture capital investments	(10,575)	(6,451)
Other, net	(380)	3,932
Changes in assets and liabilities:
Trade receivables, net	(23,127)	(3,780)
Inventories	(2,520)	(3,501)
Accounts payable	10,245	(1,076)
Accrued compensation	(55,114)	(30,991)
Deferred revenue	(14,405)	(18,292)
Customer contract deposits	(5,866)	23,566
Other assets and liabilities, net	(5,125)	407
Net cash provided by operating activities	14,859	60,051
Cash flows relating to investing activities
Acquisition of businesses and assets, net of cash acquired	(989)	(20,216)
Capital expenditures	(16,731)	(27,726)
Purchases of investments and contributions to venture capital investments	(2,419)	(5,268)
Proceeds from sale of investments	15	28,596
Other, net	(689)	(50)
Net cash used in investing activities	(20,813)	(24,664)
Cash flows relating to financing activities
Proceeds from long-term debt and revolving credit facility	290,111	1,080,299
Proceeds from exercises of stock options	21,832	20,041
Payments on long-term debt, revolving credit facility, and finance lease obligations	(360,658)	(1,096,795)
Payments on debt financing costs	0	(4,932)
Purchase of treasury stock	(17,760)	(13,549)
Other, net	(2,608)	0
Net cash used in financing activities	(69,083)	(14,936)
Discontinued operations
Net cash used in operating activities from discontinued operations	0	(636)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	6,025	4,254
Net change in cash, cash equivalents, and restricted cash	(69,012)	24,069
Cash, cash equivalents, and restricted cash, beginning of period	197,318	166,331
Cash, cash equivalents, and restricted cash, end of period	128,306	190,400
Supplemental cash flow information:
Cash, cash equivalents, and restricted cash, end of period	$ 197,318	$ 166,331

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The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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The cash outflow associated with security instruments that either represent a creditor or an ownership relationship with the holder of the investment security with a maturity of beyond one year or normal operating cycle, if longer. Includes repayments of (a) debt, (b) capital lease obligations, (c) mandatory redeemable capital securities, and (d) any combination of (a), (b), or (c).

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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.

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