CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
CURRENT ASSETS:
Cash and cash equivalents	$ 287,157	$ 354,842
Short-term investments	412,255	244,649
Trade accounts receivable, net	139,033	101,222
Distributor receivables	512	413
Inventories	164,481	153,241
Prepaid expenses and other current assets	18,290	17,022
Prepaid income taxes	232	9,992
Deferred income taxes	16,772	16,772
Total current assets	1,038,732	898,153
INVESTMENTS	26,689	44,189
PROPERTY AND EQUIPMENT, net	44,070	34,551
DEFERRED INCOME TAXES	57,545	58,475
INTANGIBLES, net	47,466	43,316
OTHER ASSETS	3,926	3,447
Total Assets	1,218,428	1,082,131
CURRENT LIABILITIES:
Accounts payable	108,521	85,674
Accrued liabilities	32,803	23,811
Deferred revenue	11,434	10,140
Accrued distributor terminations	14	407
Accrued compensation	9,035	7,603
Current portion of debt	994	274
Income taxes payable	3,128	925
Total current liabilities	165,929	128,834
DEFERRED REVENUE	119,953	124,899
COMMITMENTS AND CONTINGENCIES (Note 9)
STOCKHOLDERS' EQUITY:
Common stock - $0.005 par value; 120,000 shares authorized; 99,299 shares issued and 87,417 outstanding as of September 30, 2011; 98,731 shares issued and 88,980 outstanding as of December 31, 2010	496	494
Additional paid-in capital	220,331	187,040
Retained earnings	1,104,108	882,425
Accumulated other comprehensive (loss) income	(1,504)	281
Common stock in treasury, at cost; 11,882 shares and 9,751 shares as of September 30, 2011 and December 31, 2010, respectively	(390,885)	(241,842)
Total stockholders' equity	932,546	828,398
Total Liabilities and Stockholders' Equity	$ 1,218,428	$ 1,082,131