Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 62,730	$ 96,968	[1]
Short-term investments	237,689	205,540	[1]
Accounts receivable, net	35,890	42,464	[1]
Inventories, net	57,331	46,794	[1]
Prepaid expenses and other current assets	7,918	8,305	[1]
Total current assets	401,558	400,071	[1]
Property, plant, and equipment, net	24,641	19,801	[1]
Intangible assets, net	16,174	12,282	[1]
Other assets	5,816	4,832	[1]
Total assets	448,189	436,986	[1]
Current liabilities:
Notes payable	1,000	1,000	[1]
Accounts payable	13,233	17,741	[1]
Deferred product and services income	6,545	16,964	[1]
Other current liabilities	13,808	14,860	[1]
Total current liabilities	34,586	50,565	[1]
Other liabilities	11,817	11,235	[1]
Stockholders’ equity	401,786	375,186	[1]
Total liabilities and stockholders’ equity	$ 448,189	$ 436,986	[1]

[1] The balance sheet as of December 31, 2012 has been derived from the audited financial statements at that date.