Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 77,250	$ 43,035
Short-term investments	23,302
Restricted cash and investments	3,062	5,504
Accounts receivable, net of allowance for doubtful accounts	77,830	77,597
Inventories	70,747	57,347
Prepaid expenses and other current assets	10,723	15,540
Total current assets	262,914	199,023
Property, plant and equipment, net	62,470	57,657
Restricted cash and investments, non-current		15,750
Purchased intangible assets, net	11,169	10,263
Goodwill	1,115
Other long-term assets	3,743	3,591
Total assets	341,411	286,284
Current liabilities:
Accounts payable	54,465	48,949
Notes payable and short-term borrowing	10,196	22,771
Current portion of long-term debt	24,563	2,445
Accrued and other current liabilities	21,406	22,728
Total current liabilities	110,630	96,893
Long-term debt, net of current portion	11,005	20,891
Deferred income tax liabilities	1,808	1,818
Other noncurrent liabilities	7,547	7,226
Total liabilities	$ 130,990	$ 126,828
Commitments and contingencies (Note 10)
Stockholders' equity:
Preferred stock, $0.0025 par value, 10,000 shares authorized, no shares issued or outstanding
Common stock, $0.0025 par value, 100,000 shares authorized At September 30, 2015, 40,478 shares issued and outstanding; at December 31, 2014, 32,752 shares issued and outstanding	$ 101	$ 82
Additional paid-in capital	507,969	456,189
Accumulated other comprehensive income	1,223	5,326
Accumulated deficit	(298,872)	(302,141)
Total stockholders' equity	210,421	159,456
Total liabilities and stockholders' equity	$ 341,411	$ 286,284