Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 190,340	$ 139,881
Accounts receivable, net	64,909	83,753
Inventories, net	149,178	140,364
Prepaid expenses and other current assets	16,272	11,681
Total current assets	420,699	375,679
Property, plant and equipment, net	27,997	25,328
Operating lease assets	5,033	5,849
Finance lease assets, net	21,200	21,880
Long-term restricted cash	6,676	6,653
Deferred income taxes	64,615	68,060
Other assets	42,344	44,645
Total assets	588,564	548,094
Current liabilities:
Accounts payable	30,270	25,341
Accrued compensation	14,221	7,631
Warranty	3,942	2,759
Income taxes	298	294
Deferred revenue	29,181	24,601
Current portion of finance lease obligation	654	399
Other current liabilities	8,193	7,639
Total current liabilities	86,759	68,664
Long-term finance lease obligation	47,787	48,149
Long-term deferred revenue	1,236	4,650
Other long-term liabilities	7,758	7,204
Total liabilities	143,540	128,667
Commitments and contingencies (Note 16)
Stockholders? equity:
Common stock, $0.001 par value, 75,000 shares authorized; 33,433 shares issued and outstanding at June 30, 2020; 32,585 shares issued and outstanding at December 31, 2019	33	33
Additional paid-in capital	562,839	559,878
Accumulated deficit	(117,428)	(140,226)
Accumulated other comprehensive loss	(420)	(258)
Total stockholders' equity	445,024	419,427
Total liabilities and stockholders' equity	$ 588,564	$ 548,094