Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 3,371,933	$ 2,765,196
Short-term investments	65,222	0
Total cash, cash equivalents, and short-term investments	3,437,155	2,765,196
Accounts receivable, net	232,273	363,614
Inventories	122,279	146,524
Deferred income taxes — current	58,415	66,839
Deferred compensation plan	71,979	74,236,000
Other current assets	52,710	114,601
Total current assets	3,974,811	3,531,010
Property and equipment, net	171,721	164,155
Long-term Investments	74,033	0
Deferred income taxes — non-current	26,629	37,319
Other assets, net	35,074	27,353
Total assets	4,282,268	3,759,837
Current liabilities:
Accounts payable	52,154	86,061
Accrued liabilities	34,029	23,278
Accrued compensation and related liabilities	78,181	83,773
Deferred compensation plan obligations	71,979	74,236
Deferred income and allowances on sales to distributors	279,876	428,711
Income taxes payable	0	428
Credit facility	500,000	0
Total current liabilities	1,016,219	696,487
Income taxes payable — non-current	263,423	231,833
Credit facility	0	500,000
Other non-current liabilities	8,730	7,865
Total liabilities	1,288,372	1,436,185
Commitments and contingencies
Stockholders' equity:
Common stock: $.001 par value; 1,000,000 shares authorized; outstanding - 322,054 at December 31, 2011 and 319,494 at December 31, 2010	322	319
Capital in excess of par value	1,050,752	908,989
Retained earnings	1,942,955	1,414,344
Accumulated other comprehensive loss	(133)	0
Total stockholders' equity	2,993,896	2,323,652
Total liabilities and stockholders' equity	4,282,268	3,759,837
Marketable Securities [Member]
Current assets:
Deferred compensation plan	54,041	54,419
Restricted Cash Equivalents [Member]
Current assets:
Deferred compensation plan	$ 17,938	$ 19,817