Consolidated Balance Sheets (USD $)	Jul. 02, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 92,956,000	$ 46,175,000
Restricted cash	65,000	1,378,000
Investments and marketable securities	163,509,000	125,567,000
Accounts receivable, net	145,991,000	130,143,000
Receivable from buyer	13,790,000
Inventories, net	118,109,000	112,970,000
Deferred income taxes	18,593,000	15,670,000
Prepaid expenses and other current assets	13,675,000	11,505,000
Assets of discontinued operations	1,157,000	148,169,000
Total current assets	567,845,000	591,577,000
Property and equipment at cost, less accumulated depreciation and amortization	93,462,000	87,093,000
Long-term deferred income taxes	17,926,000	21,254,000
Goodwill	79,703,000	79,703,000
Other intangibles, net	8,084,000	9,755,000
Long-term investments and marketable securities	86,348,000	85,478,000
Long-term receivable from buyer	13,790,000	0
Other assets	4,211,000	4,004,000
Total assets	871,369,000	878,864,000
Current liabilities:
Accounts payable	35,728,000	34,578,000
Accrued liabilities	54,368,000	65,163,000
Deferred revenue	11,928,000	8,966,000
Income taxes payable	990,000	5,900,000
Liabilities of discontinued operations	801,000	21,827,000
Total current liabilities	103,815,000	136,434,000
Deferred rent	1,810,000	2,207,000
Other long-term liabilities	10,044,000	10,191,000
Total liabilities	115,669,000	148,832,000
Stockholders' equity:
Preferred Stock
Class A Common Stock	722,000	722,000
Additional paid-in capital	127,004,000	129,715,000
Treasury stock	(525,002,000)	(462,029,000)
Retained earnings	1,165,571,000	1,070,973,000
Accumulated other comprehensive income (loss)	(12,595,000)	(9,349,000)
Total stockholders' equity	755,700,000	730,032,000
Total liabilities and stockholders' equity	$ 871,369,000	$ 878,864,000