Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 213,399	$ 235,524
Marketable securities	9,989	9,989
Accounts receivable, net	33,983	24,452
Inventories, net	34,078	31,873
Income tax receivable	1,435	1,343
Prepaid expenses and other current assets	25,238	26,005
Total current assets	318,122	329,186
Property and equipment
Rental equipment, net	59,387	59,073
Manufacturing equipment and tooling	10,968	12,050
Computer equipment and software	8,320	8,585
Furniture and equipment	3,135	3,167
Leasehold improvements	6,045	5,956
Land and building	125	125
Construction in process	2,705	1,639
Total property and equipment	90,685	90,595
Less accumulated depreciation	(51,356)	(51,669)
Property and equipment, net	39,329	38,926
Goodwill	32,934	32,979
Intangible assets, net	58,000	60,147
Operating lease right-of-use asset	24,080	24,912
Other assets	2,151	3,363
Total assets	474,616	489,513
Current liabilities
Accounts payable and accrued expenses	32,375	25,689
Accrued payroll	8,839	17,307
Warranty reserve - current	6,519	6,480
Operating lease liability - current	3,401	3,393
Deferred revenue - current	8,689	8,568
Income tax payable		75
Total current liabilities	59,823	61,512
Long-term liabilities
Warranty reserve - noncurrent	6,574	7,246
Operating lease liability - noncurrent	22,409	23,281
Earnout liability - noncurrent	16,016	15,386
Deferred revenue - noncurrent	11,509	11,861
Total liabilities	116,331	119,286
Commitments and contingencies (Note 9)
Stockholders' equity
Common stock, $0.001 par value per share; 200,000,000 authorized; 22,836,472 and 22,731,586 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	23	23
Additional paid-in capital	302,020	299,463
Retained earnings	55,058	69,272
Accumulated other comprehensive income	1,184	1,469
Total stockholders' equity	358,285	370,227
Total liabilities and stockholders' equity	$ 474,616	$ 489,513