CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 201,937	$ 35,484
Restricted cash	692	287
Available-for-sale securities-short-term portion	7,937	67,223
Accounts receivable, net	44,021	52,281
Inventories	42,851	49,373
Deferred tax assets-short-term portion	364	1,071
Property and equipment, net-held for sale	9,000	0
Prepaid expenses and other current assets	7,785	9,422
Total current assets	314,587	215,141
Available-for-sale securities-long-term portion	54,501	134,190
Property and equipment, net	30,583	54,177
Acquired technology rights, net	29,525	38,858
Deferred tax assets-long-term portion	450	4,894
Other long-term assets	8,369	13,525
Total assets	438,015	460,785
Current liabilities:
Accounts payable and accrued liabilities	44,774	44,259
Deferred revenue-short-term portion	9,852	10,950
Total current liabilities	54,626	55,209
Deferred revenue-long-term portion	3,959	4,601
Other long-term liabilities	9,127	11,748
Convertible notes	95,469	95,472
Stockholders' equity:
Convertible redeemable preferred stock, $0.01 par value; 5,000 shares authorized; no shares issued and outstanding at December 31, 2010 and 2009	0	0
Common stock, $0.01 par value; 200,000 shares authorized; 70,454 and 70,578 shares issued and outstanding at December 31, 2011 and 2010, respectively	704	706
Additional paid-in capital	750,332	742,206
Accumulated other comprehensive income	2,492	1,376
Accumulated deficit	(478,694)	(450,533)
Total stockholders' equity	274,834	293,755
Total liabilities and stockholders' equity	$ 438,015	$ 460,785