CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 511,360	$ 528,622
Short-term investments	585,222	672,933
Accounts receivable, net	525,463	449,476
Inventories	268,607	255,745
Prepaid expenses and other current assets	61,639	40,877
Prepaid income taxes	86,257	138,724
Total current assets	2,038,548	2,086,377
INVESTMENTS	3,497	2,366
PROPERTY AND EQUIPMENT, net	231,199	230,276
DEFERRED INCOME TAXES	85,748	92,333
GOODWILL	1,331,643	1,331,643
OTHER INTANGIBLE ASSETS, net	1,036,661	1,034,085
OTHER ASSETS	12,836	13,932
Total Assets	4,740,132	4,791,012
CURRENT LIABILITIES:
Accounts payable	226,063	245,910
Accrued liabilities	80,893	87,475
Accrued promotional allowances	155,992	137,998
Accrued distributor terminations	162	91
Deferred revenue	44,325	43,236
Accrued compensation	16,829	34,996
Income taxes payable	9,758	10,645
Total current liabilities	534,022	560,351
DEFERRED REVENUE	328,300	334,354
OTHER LIABILITIES	2,203	1,095
COMMITMENTS AND CONTINGENCIES (Note 11)
STOCKHOLDERS' EQUITY:
Common stock - $0.005 par value; 1,250,000 shares authorized; 629,924 shares issued and 562,605 outstanding as of March 31, 2018; 629,255 shares issued and 566,298 outstanding as of December 31, 2017	3,150	3,146
Additional paid-in capital	4,170,565	4,150,628
Retained earnings	3,137,691	2,928,226
Accumulated other comprehensive loss	(13,721)	(16,659)
Common stock in treasury, at cost; 67,319 shares and 62,957 shares as of March 31, 2018 and December 31, 2017, respectively	(3,422,078)	(3,170,129)
Total stockholders' equity	3,875,607	3,895,212
Total Liabilities and Stockholders' Equity	$ 4,740,132	$ 4,791,012