CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Operating activities:
Net loss	$ (24,521)	$ (8,252)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	10,061	9,560
Stock-based compensation	10,024	8,657
Provisions for bad debts, net of recoveries	80	33
Loss on disposal of assets	356	130
Provision for excess and obsolete inventory	209	1,955
Deferred income tax expense (benefit)	568	(3,667)
Decrease (Increase) in:
Accounts receivable	867	4,311
Inventories	2,129	(9,106)
Prepaid expenses and other current assets	(14,566)	(2,935)
(Decrease) Increase in:
Accounts payable and accrued liabilities	(2,249)	(14,153)
Income taxes payable	1,008	(1,847)
Customer deposits	588	1,966
Unearned service revenues	(2,710)	(2,223)
Net cash used in operating activities	(18,156)	(15,571)
Investing activities:
Purchases of property and equipment	(4,978)	(4,845)
Cash paid for technology development, patents and licenses	(9,154)	(1,933)
Acquisition of business, net of cash acquired	(29,068)	(33,908)
Net cash used in investing activities	(43,200)	(40,686)
Financing activities:
Payments on finance leases	(172)	(229)
Payments for taxes related to net share settlement of equity awards	(1,584)	(4,137)
Proceeds from issuance of stock related to stock option exercises	0	5,835
Net cash (used in) provided by financing activities	(1,756)	1,469
Effect of exchange rate changes on cash and cash equivalents	(10,343)	(5,031)
Decrease in cash and cash equivalents	(73,455)	(59,819)
Cash and cash equivalents, beginning of period	121,989	185,633
Cash and cash equivalents, end of period	$ 48,534	$ 125,814