Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 64,279	$ 96,968	[1]
Short-term investments	235,411	205,540	[1]
Accounts receivable, net	45,906	42,464	[1]
Inventories, net	56,057	46,794	[1]
Prepaid expenses and other current assets	9,127	8,305	[1]
Total current assets	410,780	400,071	[1]
Property, plant, and equipment, net	22,245	19,801	[1]
Intangible assets, net	16,612	12,282	[1]
Other assets	4,529	4,832	[1]
Total assets	454,166	436,986	[1]
Current liabilities:
Notes payable	1,000	1,000	[1]
Accounts payable	16,550	17,741	[1]
Deferred product and services income	7,679	16,964	[1]
Other current liabilities	11,962	14,860	[1]
Total current liabilities	37,191	50,565	[1]
Other liabilities	11,814	11,235	[1]
Stockholders’ equity	405,161	375,186	[1]
Total liabilities and stockholders’ equity	$ 454,166	$ 436,986	[1]

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