CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 27, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 93,330	$ 96,670
Short-term investments	75,966	104,506
Accounts receivable, net	85,069	85,920
Inventories	40,369	64,270
Deferred income taxes	20,144	21,870
Prepaid expenses and other current assets	14,757	23,636
Total current assets	329,635	396,872
Property and equipment, net	35,551	38,122
Goodwill	197,956	212,518
Intangibles, net	37,878	58,447
Other assets	16,133	11,572
Total assets	617,153	717,531
Current liabilities:
Accounts payable	19,987	25,447
Income taxes payable	577	1,797
Deferred revenue	34,115	33,235
Accrued liabilities	33,118	42,415
Total current liabilities	87,797	102,894
Income taxes payable, long-term	12,155	49,309
Other non-current liabilities	11,694	11,915
Total liabilities	111,646	164,118
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value, 150,000 shares authorized; 100,901 and 114,193 shares issued and outstanding at September 27, 2013 and December 31, 2012, respectively	101	114
Additional paid-in capital	2,345,512	2,432,790
Accumulated deficit	(1,839,639)	(1,879,026)
Accumulated other comprehensive loss	(467)	(465)
Total stockholders’ equity	505,507	553,413
Total liabilities and stockholders’ equity	$ 617,153	$ 717,531