Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Cash flows from operating activities:
Net (loss) income	$ (29,606)	$ 78,232	$ 57,072
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	22,149	16,666	14,492
Change in deferred income tax provision (benefit)	19,224	(49,376)	(479)
Gain on sale or maturity of marketable securities, net	(393)	(303)	(668)
Gain on sale of real estate	0	0	(720)
Stock-based compensation	7,510	6,356	4,551
Changes in assets and liabilities: net of acquisitions
Accounts receivable, net	(9,954)	4,553	(7,637)
Inventories	(6,916)	2,618	(11,408)
Prepaid expenses and other assets	387	(1,367)	(3,613)
Foundry advances (includes advance credits)	0	0	11,475
Accounts payable and accrued expenses (includes restructuring)	5,306	(1,059)	6,747
Accrued payroll obligations	(3,224)	(2,281)	6,536
Deferred income and allowances on sales to sell-through distributors	(208)	(4,931)	5,532
Other liabilities	220	13,068	222
Net cash provided by operating activities	4,495	62,176	82,102
Cash flows from investing activities:
Proceeds from sales or maturities of marketable securities	56,408	81,313	54,252
Purchase of marketable securities	(50,076)	(83,259)	(105,661)
Proceeds from sale of land	0	0	871
Acquisitions net of cash acquired	0	(45,645)	0
Payment for purchase of intangible assets	0	(18,500)	0
Capital expenditures	(13,593)	(13,001)	(13,856)
Other investing activities, primarily time based software licenses	(6,122)	(7,140)	(2,791)
Net cash used in investing activities	(13,383)	(86,232)	(67,185)
Cash flows from financing activities:
Net share settlement upon issuance of RSUs	(832)	(642)	(808)
Purchase of treasury stock	(17,549)	(14,436)	(1,970)
Net proceeds from issuance of common stock	4,382	6,173	6,176
Net cash (used in) provided by financing activities	(13,999)	(8,905)	3,398
Net (decrease) increase in cash and cash equivalents	(22,887)	(32,961)	18,315
Beginning cash and cash equivalents	141,423	174,384	156,069
Ending cash and cash equivalents	118,536	141,423	174,384
Supplemental disclosures of non-cash investing and financing activites:
Unrealized (loss) gain related to marketable securities, net, included in Accumulated other comprehensive loss	(57)	(526)	581
Distribution of deferred compensation from trust assets	263	341	288
Tax effect of change in fair market value of auction rate securities	$ 0	$ 0	$ (304)