Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Oct. 01, 2010
Cash flows from operating activities:
Net income	$ 4,452	$ 9,403
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of intangibles	22,767	8,904
Depreciation	10,306	6,696
Stock-based compensation	16,099	10,180
Net loss on disposal of fixed assets	450	73
Deferred income taxes	(2,218)	(57)
Other non-cash adjustments, net	564	1,344
Changes in assets and liabilities, net of effect of acquisitions:
Accounts receivable, net	(14,783)	(10,531)
Inventories	(7,157)	(11,088)
Prepaid expenses and other assets	7,176	(1,786)
Accounts payable	5,117	(1,898)
Deferred revenue	(9,610)	994
Income taxes payable	(5,927)	(104)
Accrued excess facility costs	120	(5,230)
Accrued and other liabilities	(6,967)	(5,688)
Net cash provided by operating activities	20,389	1,212
Cash flows from investing activities:
Purchases of investments	(76,164)	(39,035)
Proceeds from maturities of investments	15,522	83,689
Proceeds from sales of investments	18,248	32,609
Acquisition of property and equipment	(12,373)	(29,837)
Acquisition of Omneon, net of cash acquired		(153,254)
Other acquisitions	(250)
Net cash used in investing activities	(55,017)	(105,828)
Cash flows from financing activities:
Proceeds from lease financing liability		18,833
Proceeds from issuance of common stock, net	13,301	3,918
Net cash provided by financing activities	13,301	22,751
Effect of exchange rate changes on cash and cash equivalents	29	(89)
Net decrease in cash and cash equivalents	(21,298)	(81,954)
Cash and cash equivalents at beginning of period	96,533	152,477
Cash and cash equivalents at end of period	75,235	70,523
Supplemental disclosures of cash flow information:
Income tax payments, net	7,630	984
Non-cash investing and financing activities:
Issuance of restricted common stock for Omneon acquisition		95,938
Fair value of vested portion of stock options and restricted stock units assumed in Omneon acquisition		$ 2,125