Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 294,923	$ 203,479
Accounts receivable, net	104,410	86,865
Inventories, net	194,984	161,076
Prepaid expenses and other current assets	24,929	19,371
Total current assets	619,246	470,791
Property, plant and equipment, net	34,972	29,840
Operating lease assets	9,242	4,542
Finance lease assets, net	19,238	20,544
Long-term restricted cash	757	753
Deferred income taxes	35,454	57,851
Other assets	34,331	40,303
Total assets	753,240	624,624
Current liabilities:
Accounts payable	38,025	24,013
Accrued compensation	30,732	24,562
Warranty	6,424	4,280
Income taxes	887	654
Deferred revenue	60,454	21,221
Current portion of finance lease obligation	979	756
Other current liabilities	12,639	8,945
Total current liabilities	150,140	84,431
Long-term finance lease obligation	46,415	47,393
Long-term deferred revenue	7,982	1,837
Other long-term liabilities	9,744	9,361
Total liabilities	214,281	143,022
Commitments and contingencies (Note 16)
Stockholders' equity:
Common stock, $0.001 par value, 75,000 shares authorized; 33,240 shares issued and outstanding at December 31, 2021; 33,633 shares issued and outstanding at December 31, 2020	33	34
Additional paid-in capital	559,883	570,102
Accumulated deficit	(22,722)	(91,969)
Accumulated other comprehensive income	1,765	3,435
Total stockholders' equity	538,959	481,602
Total liabilities and stockholders' equity	$ 753,240	$ 624,624