Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 27, 2014	Dec. 28, 2013
Current assets:
Cash and cash equivalents	$ 89,940	$ 100,038
Short-term investments	35,419	10,894
Accounts receivable, net of allowance for doubtful accounts of $845 (2013 - $1,036)	57,013	56,112
Inventories, net	34,588	31,074
Prepaid expenses and other current assets	16,304	19,855
Income taxes receivable	3,673	2,640
Prepaid tax expenses	2,749	5,695
Deferred tax assets	3,328	43,131
Total current assets	243,014	269,439
Investment securities	103,101	103,391
Investments and other assets	8,190	10,750
Prepaid tax expenses	93	93
Property and equipment, net	38,730	39,149
Goodwill	283,239	278,849
Intangible assets, net	155,881	146,974
Deferred tax assets	1,557	1,306
Assets, Total	833,805	849,951
Current liabilities:
Accounts payable	19,092	23,173
Accrued liabilities	72,360	64,257
Credit facility		30,000
Income taxes payable	2,983	632
Liability for unrecognized tax benefit	21,394	54,127
Deferred income taxes	9	71
Deferred income	5,501	7,481
Total current liabilities	121,339	179,741
Long-term obligations	35,982	11,108
Deferred income taxes	49,183	43,143
Liability for unrecognized tax benefit	18,621	27,947
PMC special shares convertible into 1,016 (2013 - 1,019) shares of common stock	1,180	1,188
Stockholders' equity:
Common stock, par value $.001: 900,000 shares authorized; 197,749 shares issued and outstanding (2013 - 194,415)	198	195
Additional paid in capital	1,577,375	1,550,190
Accumulated other comprehensive loss	(780)	(526)
Accumulated deficit	(969,293)	(963,035)
Total stockholders' equity	607,500	586,824
Liabilities and Stockholders' Equity, Total	$ 833,805	$ 849,951