CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
CURRENT ASSETS:
Cash and cash equivalents	$ 73,360	$ 139,836
Short-term marketable securities	60,068	40,899
Accounts receivable, net of allowances of $257 and $215 in 2012 and 2011, respectively (Note 2)	17,966	9,396
Inventories	48,555	52,010
Deferred tax assets	893	892
Prepaid expenses and other current assets	7,758	7,068
Total current assets	208,600	250,101
LONG-TERM MARKETABLE SECURITIES	0	32,041
PROPERTY AND EQUIPMENT, net	91,738	88,241
INTANGIBLE ASSETS, net	51,422	8,852
GOODWILL	77,354	14,786
DEFERRED TAX ASSETS	7,120	12,387
OTHER ASSETS	43,380	26,511
Total assets	479,614	432,919
CURRENT LIABILITIES:
Accounts payable	21,108	16,532
Accrued payroll and related expenses	6,650	5,911
Taxes payable	37,936	0
Deferred tax liabilities	1,961	0
Deferred income on sales to distributors	11,270	7,883
Other accrued liabilities	2,514	2,305
Total current liabilities	81,439	32,631
LONG-TERM INCOME TAXES PAYABLE	7,364	34,368
DEFERRED TAX LIABILITIES	4,185	0
PENSION LIABILITY	622	0
Total liabilities	93,610	66,999
COMMITMENTS AND CONTINGENCIES (Note 9, 11 and 12)
STOCKHOLDERS’ EQUITY:
Common stock	29	28
Additional paid-in capital	181,203	158,646
Accumulated other comprehensive income	145	50
Retained earnings	204,627	207,196
Total stockholders’ equity	386,004	365,920
Total liabilities and stockholders’ equity	$ 479,614	$ 432,919