Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 211,967	$ 139,881
Accounts receivable, net	45,161	83,753
Inventories, net	159,658	140,364
Prepaid expenses and other current assets	18,982	11,681
Total current assets	435,768	375,679
Property, plant and equipment, net	29,199	25,328
Operating lease assets	4,655	5,849
Finance lease assets, net	20,872	21,880
Long-term restricted cash	750	6,653
Deferred income taxes	58,247	68,060
Other assets	41,165	44,645
Total assets	590,656	548,094
Current liabilities:
Accounts payable	24,260	25,341
Accrued compensation	18,856	7,631
Warranty	4,151	2,759
Income taxes	328	294
Deferred revenue	13,118	24,601
Current portion of finance lease obligation	705	399
Other current liabilities	7,965	7,639
Total current liabilities	69,383	68,664
Long-term finance lease obligation	47,593	48,149
Long-term deferred revenue	3,851	4,650
Other long-term liabilities	9,166	7,204
Total liabilities	129,993	128,667
Commitments and contingencies (Note 16)
Stockholders? equity:
Common stock, $0.001 par value, 75,000 shares authorized; 33,491 shares issued and outstanding at September 30, 2020; 32,585 shares issued and outstanding at December 31, 2019	33	33
Additional paid-in capital	566,195	559,878
Accumulated deficit	(106,643)	(140,226)
Accumulated other comprehensive income (loss)	1,078	(258)
Total stockholders' equity	460,663	419,427
Total liabilities and stockholders' equity	$ 590,656	$ 548,094