Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 03, 2014	Sep. 27, 2013
Cash flow from operating activities:
Net income	$ 158,027	$ 158,505
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	24,068	19,630
Amortization expense	117,769	120,713
Provision for doubtful accounts	2,887	1,204
Deferred income taxes	(1,193)	(13,520)
Stock-based compensation	32,125	26,158
Income from equity method investments	(11,528)	(15,908)
Gain on an equity sale	(15,091)	0
Excess tax benefit for stock-based compensation	(14,094)	(8,803)
Provision for excess and obsolete inventories	3,553	1,551
Other non-cash items	5,422	738
Add decrease (increase) in assets:
Accounts receivable	(12,742)	(28,466)
Other receivables	(4,709)	4,047
Inventories	(27,234)	2,645
Other current and non-current assets	(12,929)	(22,765)
Add increase (decrease) in liabilities:
Accounts payable	(6,745)	(22,467)
Accrued compensation and benefits	(9,321)	(2,738)
Deferred revenue	41,861	46,891
Accrued warranty expense	2,735	347
Other liabilities	37,603	10,646
Net cash provided by operating activities	310,464	278,408
Cash flow from investing activities:
Acquisitions of businesses, net of cash acquired	(170,863)	(200,401)
Acquisitions of property and equipment	(34,952)	(57,646)
Acquisitions of intangible assets	(7,007)	(105)
(Purchases) sales of equity method investments	(10,939)
(Purchases) sales of equity method investments		2,429
Dividends received from equity method investments	25,850	7,672
Increase in restricted cash	0	(6,696)
Other	(4,532)	(1,661)
Net cash used in investing activities	(202,443)	(256,408)
Cash flow from financing activities:
Issuances of common stock, net of tax withholding	53,601	37,667
Repurchase and retirement of common stock	(64,978)	0
Excess tax benefit for stock-based compensation	14,094	8,803
Proceeds from debt and revolving credit lines	42,027	332,021
Payments on debt and revolving credit lines	(153,274)	(440,886)
Net cash used in financing activities	(108,530)	(62,395)
Effect of exchange rate changes on cash and cash equivalents	(7,241)	(2,119)
Net decrease in cash and cash equivalents	(7,750)	(42,514)
Cash and cash equivalents, beginning of period	147,227	157,771
Cash and cash equivalents, end of period	$ 139,477	$ 115,257