Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 213,984	$ 198,037
Marketable securities	6,525	11,057
Accounts receivable, net	31,691	34,325
Inventories, net	29,220	35,664
Income tax receivable	3,105	2,976
Prepaid expenses and other current assets	18,856	10,160
Total current assets	303,381	292,219
Property and equipment
Rental equipment, net	44,464	39,308
Manufacturing equipment and tooling	10,274	9,704
Computer equipment and software	7,196	7,266
Furniture and equipment	2,277	1,730
Leasehold improvements	4,567	4,388
Land and building	125	125
Construction in process	1,572	1,773
Total property and equipment	70,475	64,294
Less accumulated depreciation	(45,155)	(44,856)
Property and equipment, net	25,320	19,438
Goodwill	33,054	32,954
Intangible assets, net	71,009	77,533
Operating lease right-of-use asset	9,318	5,855
Deferred tax asset - noncurrent	14,083	14,452
Other assets	4,166	4,888
Total assets	460,331	447,339
Current liabilities
Accounts payable and accrued expenses	29,200	30,730
Accrued payroll	7,234	6,215
Warranty reserve - current	5,887	4,923
Operating lease liability - current	1,890	2,014
Deferred revenue - current	6,628	5,478
Income tax payable	1,132	821
Total current liabilities	51,971	50,181
Long-term liabilities
Warranty reserve - noncurrent	8,040	7,648
Operating lease liability - noncurrent	8,570	4,702
Earnout liability - noncurrent	26,393	26,559
Deferred revenue - noncurrent	12,766	13,541
Deferred tax liability - noncurrent	91	87
Total liabilities	107,831	102,718
Commitments and contingencies (Note 10)
Stockholders' equity
Common stock, $0.001 par value per share; 200,000,000 authorized; 22,116,291 and 22,031,410 shares issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	22	22
Additional paid-in capital	271,345	263,252
Retained earnings	80,726	81,434
Accumulated other comprehensive income (loss)	407	(87)
Total stockholders' equity	352,500	344,621
Total liabilities and stockholders' equity	$ 460,331	$ 447,339