Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 27, 2015	Dec. 27, 2014
Current assets:
Cash and cash equivalents	$ 64,864	$ 112,570
Short-term investments	45,386	45,885
Accounts receivable, net of allowance for doubtful accounts of $735 (2014 - $795)	58,141	55,414
Inventories, net	36,165	37,949
Prepaid expenses and other current assets	14,097	16,473
Income taxes receivable	1,554	1,968
Prepaid income taxes		51
Deferred income tax assets	5,008	5,442
Total current assets	225,215	275,752
Investment securities	131,508	107,509
Investments and other assets	7,629	7,683
Prepaid income taxes	93	42
Property and equipment, net	37,413	37,311
Goodwill	283,239	283,239
Intangible assets, net	125,808	143,680
Deferred income tax assets	13,186	13,412
Income taxes receivable	459	457
Total assets	824,550	869,085
Current liabilities:
Accounts payable	18,848	23,360
Accrued liabilities	71,108	74,135
Credit facility	37,000
Income taxes payable	44	1,062
Liability for unrecognized tax benefit	15,153	16,076
Deferred income tax liabilities	7,646	7,644
Deferred income	4,371	4,530
Total current liabilities	154,170	126,807
Long-term obligations	24,718	36,305
Deferred income tax liabilities	53,028	53,493
Liability for unrecognized tax benefit	26,036	25,244
PMC special shares convertible into 205 (2014 - 278) shares of common stock	480	745
Stockholders' equity:
Common stock, par value $0.001: 900,000 shares authorized; 193,311 shares issued and outstanding (2014 - 199,518)	193	200
Additional paid in capital	1,590,372	1,595,609
Accumulated other comprehensive loss	(93)	(2,355)
Accumulated deficit	(1,024,354)	(966,963)
Total stockholders' equity	566,118	626,491
Total liabilities and stockholders' equity	$ 824,550	$ 869,085