Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 26, 2015	Dec. 27, 2014
Current assets:
Cash and cash equivalents	$ 73,130	$ 112,570
Short-term investments	42,347	45,885
Accounts receivable, net of allowance for doubtful accounts of $735 (2014 - $795)	62,269	55,414
Inventories, net	32,846	37,949
Prepaid expenses and other current assets	12,020	16,473
Income taxes receivable	1,147	1,968
Prepaid income taxes		51
Deferred income tax assets	5,211	5,442
Total current assets	228,970	275,752
Investment securities	134,400	107,509
Investments and other assets	6,328	7,683
Prepaid income taxes	93	42
Property and equipment, net	37,871	37,311
Goodwill	283,239	283,239
Intangible assets, net	116,945	143,680
Deferred income tax assets	13,218	13,412
Income taxes receivable	440	457
Total assets	821,504	869,085
Current liabilities:
Accounts payable	18,261	23,360
Accrued liabilities	55,172	74,135
Credit facility	30,000
Income taxes payable	626	1,062
Liability for unrecognized tax benefit	14,001	16,076
Deferred income tax liabilities	7,677	7,644
Deferred income	4,515	4,530
Total current liabilities	130,252	126,807
Long-term obligations	28,396	36,305
Deferred income tax liabilities	56,182	53,493
Liability for unrecognized tax benefit	27,107	25,244
PMC special shares convertible into 203 (2014 - 278) shares of common stock	475	745
Stockholders' equity:
Common stock, par value $0.001: 900,000 shares authorized; 195,642 shares issued and outstanding (2014 - 199,518)	196	200
Additional paid in capital	1,599,345	1,595,609
Accumulated other comprehensive loss	(2,813)	(2,355)
Accumulated deficit	(1,017,636)	(966,963)
Total stockholders' equity	579,092	626,491
Total liabilities and stockholders' equity	$ 821,504	$ 869,085