CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Cash flows relating to operating activities
Net income	$ 254,061	$ 228,724	$ 125,449
Less: Income (loss) from discontinued operations, net of income taxes	0	1,506	(137)
Income from continuing operations, net of income taxes	254,061	227,218	125,586
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	198,095	161,779	131,159
Stock-based compensation	57,271	47,346	44,003
Deferred income taxes	(21,895)	(9,702)	28,254
Gain on venture capital investments	(20,706)	(15,928)	(22,867)
Gain on divestiture	0	0	(10,577)
Impairment charges	0	0	17,239
Other, net	7,931	15,613	(666)
Changes in assets and liabilities:
Trade receivables, net	(8,323)	(21,196)	(48,279)
Inventories	(21,399)	(13,338)	(17,838)
Accounts payable	29,775	(12,732)	34
Accrued compensation	3,394	31,616	3,666
Long-term payable on Transition Tax (Notes 5 and 11)	0	(8,974)	61,038
Deferred revenue	(3,620)	36,072	(8,466)
Customer contract deposits	(10,898)	28,115	0
Other assets and liabilities, net	17,250	(24,749)	15,788
Net cash provided by operating activities	480,936	441,140	318,074
Cash flows relating to investing activities
Acquisition of businesses and assets, net of cash acquired	(515,701)	(824,868)	(25,012)
Capital expenditures	(140,514)	(140,054)	(82,431)
Purchases of investments and contributions to venture capital investments	(22,341)	(25,125)	(46,217)
Proceeds from sale of investments	942	35,849	9,128
Proceeds from divestiture	0	0	72,462
Other, net	(3,888)	(805)	(516)
Net cash used in investing activities	(681,502)	(955,003)	(72,586)
Cash flows relating to financing activities
Proceeds from long-term debt and revolving credit facility	3,358,461	2,755,028	236,856
Proceeds from exercises of stock options	34,546	37,657	38,870
Payments on long-term debt, revolving credit facility, and finance lease obligations	(3,124,588)	(2,201,003)	(372,435)
Payments on debt financing costs	(6,593)	(18,337)	0
Purchase of treasury stock	(18,087)	(13,846)	(106,909)
Other, net	(11,802)	(1,440)	(4,858)
Net cash provided by (used in) financing activities	231,937	558,059	(208,476)
Discontinued operations
Net cash used in operating activities from discontinued operations	0	(3,735)	(1,809)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	11,357	(9,474)	11,234
Net change in cash, cash equivalents, and restricted cash	42,728	30,987	46,437
Cash, cash equivalents, and restricted cash, beginning of period	197,318	166,331	119,894
Cash, cash equivalents, and restricted cash, end of period	240,046	197,318	166,331
Supplemental cash flow information:
Cash, cash equivalents, and restricted cash, end of period	240,046	166,331	166,331
Cash paid for income taxes	54,060	67,600	60,377
Cash paid for interest	67,813	47,540	27,417
Non-cash investing and financing activities:
Additions to property, plant and equipment, net	21,447	18,212	38,199
Assets acquired under finance leases	$ 4,819	$ 1,473	$ 722

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