CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
CURRENT ASSETS:
Cash and cash equivalents	$ 418,197	$ 354,842
Short-term investments	281,218	244,649
Trade accounts receivable, net	161,626	101,222
Distributor receivables	673	413
Inventories	156,778	153,241
Prepaid expenses and other current assets	18,623	17,022
Prepaid income taxes	248	9,992
Deferred income taxes	16,772	16,772
Total current assets	1,054,135	898,153
INVESTMENTS	30,202	44,189
PROPERTY AND EQUIPMENT, net	40,931	34,551
DEFERRED INCOME TAXES	57,545	58,475
INTANGIBLES, net	46,677	43,316
OTHER ASSETS	4,080	3,447
Total Assets	1,233,570	1,082,131
CURRENT LIABILITIES:
Accounts payable	102,263	85,674
Accrued liabilities	32,700	23,811
Deferred revenue	11,050	10,140
Accrued distributor terminations	13	407
Accrued compensation	5,785	7,603
Current portion of debt	1,255	274
Income taxes payable	8,784	925
Total current liabilities	161,850	128,834
DEFERRED REVENUE	121,376	124,899
COMMITMENTS AND CONTINGENCIES (Note 9)
STOCKHOLDERS' EQUITY:
Common stock - $0.005 par value; 120,000 shares authorized; 99,079 shares issued and 88,620 outstanding as of June 30, 2011; 98,731 shares issued and 88,980 outstanding as of December 31, 2010	495	494
Additional paid-in capital	206,833	187,040
Retained earnings	1,021,716	882,425
Accumulated other comprehensive income	2,004	281
Common stock in treasury, at cost; 10,459 shares and 9,751 shares as of June 30, 2011 and December 31, 2010, respectively	(280,704)	(241,842)
Total stockholders' equity	950,344	828,398
Total Liabilities and Stockholders' Equity	$ 1,233,570	$ 1,082,131