Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 297,141	$ 294,923
Accounts receivable, net	118,987	104,410
Inventories, net	203,838	194,984
Prepaid expenses and other current assets	28,740	24,929
Total current assets	648,706	619,246
Property, plant and equipment, net	35,500	34,972
Operating lease assets	9,403	9,242
Finance lease assets, net	18,914	19,238
Long-term restricted cash	755	757
Deferred income taxes	36,226	35,454
Other assets	32,692	34,331
Total assets	782,196	753,240
Current liabilities:
Accounts payable	50,759	38,025
Accrued compensation	10,538	30,732
Warranty	7,203	6,424
Income taxes	1,734	887
Deferred revenue	60,477	60,454
Current portion of finance lease obligation	1,039	979
Other current liabilities	15,747	12,639
Total current liabilities	147,497	150,140
Long-term finance lease obligation	46,128	46,415
Long-term deferred revenue	14,363	7,982
Other long-term liabilities	14,935	9,744
Total liabilities	222,923	214,281
Commitments and contingencies (Note 16)
Stockholders' equity:
Common stock, $0.001 par value, 75,000 shares authorized; 33,064 shares issued and outstanding at March 31, 2022; 33,240 shares issued and outstanding at December 31, 2021	33	33
Additional paid-in capital	554,633	559,883
Retained earnings (accumulated deficit)	4,019	(22,722)
Accumulated other comprehensive income	588	1,765
Total stockholders' equity	559,273	538,959
Total liabilities and stockholders' equity	$ 782,196	$ 753,240