CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 29, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 51,424	$ 62,827
Investments and marketable securities	414,143	350,380
Accounts receivable, net	181,618	176,917
Inventories, net	119,373	121,023
Deferred income taxes	19,810	19,810
Income tax receivable	768	7,622
Prepaid expenses and other current assets	13,879	15,524
Total current assets	801,015	754,103
Property and equipment at cost, less accumulated depreciation and amortization	107,511	109,588
Goodwill	155,800	155,800
Other intangibles, net	66,296	68,968
Long-term investments and marketable securities	2,588	2,588
Other assets	29,169	28,765
Total assets	1,162,379	1,119,812
Current liabilities:
Accounts payable	34,637	34,688
Accrued liabilities	52,306	61,962
Deferred revenue	16,411	15,506
Income taxes payable	8,010	6,898
Total current liabilities	111,364	119,054
Long-term deferred tax liability	25,510	25,492
Deferred rent	1,050	1,131
Other long-term liabilities	15,515	15,477
Total liabilities	153,439	161,154
Stockholders' equity:
Class A Common Stock	722	722
Additional paid-in capital	146,910	143,295
Treasury stock	(673,989)	(678,456)
Retained earnings	1,544,484	1,502,878
Accumulated other comprehensive loss	(9,187)	(9,781)
Total stockholders' equity	1,008,940	958,658
Total liabilities and stockholders' equity	$ 1,162,379	$ 1,119,812