Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 75,235	$ 96,533
Short-term investments	65,648	23,838
Accounts receivable, net of allowances of $8,544 and $5,897 at September 30, 2011 and December 31, 2010, respectively	116,429	101,652
Inventories	65,155	58,065
Deferred income taxes	39,849	39,849
Prepaid expenses and other current assets	22,133	28,614
Total current assets	384,449	348,551
Property and equipment, net	39,379	39,825
Goodwill	212,443	211,878
Intangibles, net	95,303	118,070
Other assets	1,866	2,062
Total assets	733,440	720,386
Current liabilities:
Accounts payable	30,918	26,300
Income taxes payable	655	6,791
Deferred revenue	37,125	46,279
Accrued liabilities	39,761	51,283
Total current liabilities	108,459	130,653
Accrued excess facility costs, long-term	1,334	1,153
Income taxes payable, long-term	49,855	48,883
Deferred income taxes, long-term	12,570	14,849
Other non-current liabilities	7,168	4,645
Total liabilities	179,386	200,183
Commitments and contingencies (Notes 15 and 16)
Stockholders' equity:
Preferred stock, $0.001 par value, 5,000 shares authorized; no shares issued or outstanding
Common stock, $0.001 par value, 150,000 shares authorized; 115,895 and 112,360 shares issued and outstanding at September 30, 2011 and December 31, 2010, respectively	116	112
Capital in excess of par value	2,427,000	2,397,671
Accumulated deficit	(1,872,416)	(1,876,868)
Accumulated other comprehensive loss	(646)	(712)
Total stockholders' equity	554,054	520,203
Total liabilities and stockholders' equity	$ 733,440	$ 720,386