Consolidated Balance Sheets(USD ($))	Oct. 01, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 43,781,000	$ 46,175,000
Restricted cash	65,000	1,378,000
Investments and marketable securities	147,115,000	125,567,000
Accounts receivable, net	162,314,000	130,143,000
Receivable from buyer	27,580,000	0
Inventories, net	120,378,000	112,970,000
Deferred income taxes	16,470,000	15,670,000
Income tax receivable	1,707,000	0
Prepaid expenses and other current assets	20,303,000	11,505,000
Assets of discontinued operations	0	148,169,000
Total current assets	539,713,000	591,577,000
Property and equipment at cost, less accumulated depreciation and amortization	94,726,000	87,093,000
Long-term deferred income taxes	18,241,000	21,254,000
Goodwill	79,703,000	79,703,000
Other intangibles, net	7,441,000	9,755,000
Long-term investments and marketable securities	108,086,000	85,478,000
Other assets	3,862,000	4,004,000
Total assets	851,772,000	878,864,000
Current liabilities:
Accounts payable	30,924,000	34,578,000
Accrued liabilities	53,236,000	65,163,000
Deferred revenue	10,276,000	8,966,000
Income taxes payable	0	5,900,000
Liabilities of discontinued operations	0	21,827,000
Total current liabilities	94,436,000	136,434,000
Deferred rent	1,695,000	2,207,000
Other long-term liabilities	9,693,000	10,191,000
Total liabilities	105,824,000	148,832,000
Stockholders' equity:
Preferred Stock	0	0
Class A Common Stock	722,000	722,000
Additional paid-in capital	129,608,000	129,715,000
Treasury stock	(587,510,000)	(462,029,000)
Retained earnings	1,210,572,000	1,070,973,000
Accumulated other comprehensive income (loss)	(7,444,000)	(9,349,000)
Total stockholders' equity	745,948,000	730,032,000
Total liabilities and stockholders' equity	$ 851,772,000	$ 878,864,000