CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012
Current assets:
Cash and cash equivalents	$ 137,629	$ 104,666
Short-term investments	151,821	76,146
Accounts receivable, net of allowance for doubtful accounts of $147 in 2013 and $94 in 2012	87,180	107,039
Other receivables	616	2,909
Inventory	123,505	127,809
Deferred inventory costs	1,244	1,029
Prepaid expenses and other current assets	18,924	9,899
Total current assets	520,919	429,497
Property, plant and equipment, net	79,062	80,343
Deferred inventory costs, non-current	19	100
Long-term investments	52,871	2,874
Cost-method investment	9,000	9,000
Long-term restricted cash	3,724	3,868
Deferred tax asset	0	805
Other non-current assets	5,238	1,683
Total assets	670,833	528,170
Current liabilities:
Accounts payable	29,218	61,428
Accrued expenses	21,290	25,483
Accrued compensation and related benefits	24,621	22,325
Accrued warranty	12,854	7,262
Deferred revenue	25,202	26,744
Deferred tax liability	0	805
Total current liabilities	113,185	144,047
Long-term debt, net	107,350	0
Accrued warranty, non-current	10,308	9,220
Deferred revenue, non-current	3,097	3,210
Other long-term liabilities	18,158	15,557
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $0.001 par value Authorized shares – 25,000 and no shares issued and outstanding	0	0
Common stock, $0.001 par value Authorized shares – 500,000 as of September 28, 2013 and December 29, 2012 Issued and outstanding shares – 119,491 as of September 28, 2013 and 112,461 as of December 29, 2012	119	112
Additional paid-in capital	1,016,397	930,618
Accumulated other comprehensive loss	(3,474)	(2,228)
Accumulated deficit	(594,307)	(572,366)
Total stockholders’ equity	418,735	356,136
Total liabilities and stockholders’ equity	$ 670,833	$ 528,170