CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014		Dec. 28, 2013
Current assets:
Cash and cash equivalents	$ 86,495		$ 124,330
Short-term investments	239,628		172,660
Accounts receivable, net of allowance for doubtful accounts of $38 in 2014 and $43 in 2013	154,596		100,643
Inventory	146,500	[1]	123,685	[1]
Prepaid expenses and other current assets	24,636		17,752
Total current assets	651,855		539,070
Property, plant and equipment, net	81,566		79,668
Long-term investments	59,233		64,419
Cost-method investment	14,500		9,000
Long-term restricted cash	5,460		3,904
Other non-current assets	5,402		4,865
Total assets	818,016		700,926
Current liabilities:
Accounts payable	61,533		39,843
Accrued expenses	26,441		22,431
Accrued compensation and related benefits	38,795		33,899
Accrued warranty	12,241		12,374
Deferred revenue	35,321		32,402
Total current liabilities	174,331		140,949
Long-term debt, net	116,894		109,164
Accrued warranty, non-current	14,799		10,534
Deferred revenue, non-current	10,758		4,888
Other long-term liabilities	19,327		17,581
Commitments and contingencies (Note 10)
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 in 2014 and 2013 Issued and outstanding shares—126,160 in 2014 and 119,887 in 2013	126		120
Additional paid-in capital	1,077,225		1,025,661
Accumulated other comprehensive loss	(4,618)		(3,486)
Accumulated deficit	(590,826)		(604,485)
Total stockholders’ equity	481,907		417,810
Total liabilities and stockholders’ equity	$ 818,016		$ 700,926

[1] As of December 27, 2014 and December 28, 2013, the Company’s inventory value had been reduced by $10.1 million and $8.7 million, respectively, for excess and obsolescence, and $7.1 million and $5.0 million, respectively, for LCM adjustments.