Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 125,505	$ 94,964
Short-term investments	148,573	212,526
Accounts receivable, net of allowances for doubtful accounts of $789 at September 29, 2012 and $725 at December 31, 2011	75,749	55,351
Inventories	42,523	34,778
Deferred income taxes	15,870	11,563
Prepaid expenses and other current assets	36,735	43,867
Total current assets	444,955	453,049
Long-term investments	11,418	17,477
Property and equipment, net	136,321	25,141
Goodwill	130,069	115,489
Other intangible assets, net	94,611	60,005
Other assets, net	37,669	34,830
Total assets	855,043	705,991
Current liabilities:
Accounts payable	35,476	26,354
Current portion of long-term debt	5,000
Accrued expenses	41,441	30,857
Deferred income on shipments to distributors	30,903	24,962
Income taxes	3,339	665
Total current liabilities	116,159	82,838
Long-term debt	95,000
Other non-current liabilities	22,663	24,214
Total liabilities	233,822	107,052
Commitments and contingencies
Stockholders' equity:
Preferred stock--$0.0001 par value; 10,000 shares authorized; no shares issued and outstanding
Common stock--$0.0001 par value; 250,000 shares authorized; 41,706 and 42,068 shares issued and outstanding at September 29, 2012 and December 31, 2011, respectively	4	4
Additional paid-in capital		14,749
Retained earnings	622,098	586,653
Accumulated other comprehensive loss	(881)	(2,467)
Total stockholders' equity	621,221	598,939
Total liabilities and stockholders' equity	$ 855,043	$ 705,991