Balance Sheet Components - Balance Sheet Components (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Inventories:
Raw materials	$ 73,221	$ 48,215
Work in process	8,970	11,009
Finished goods	64,905	60,700
Total inventories	$ 147,096	$ 119,924
Other current assets:
Restricted Cash, Statement of Financial Position [Extensible Enumeration]	Total other current assets	Total other current assets
Funds held for customers, including restricted cash	$ 35,249	$ 20,405
Net investment in sales-type leases, current portion	12,586	10,665
Prepaid income taxes	1,846	6,656
Other current assets	6,993	10,608
Total other current assets	56,674	48,334
Other long-term assets:
Capitalized software, net	85,186	96,995
Unbilled receivables, net	13,815	18,084
Deferred debt issuance costs	2,333	3,156
Other long-term assets	9,012	9,284
Total other long-term assets	$ 110,346	$ 127,519
Accrued liabilities:
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total accrued liabilities	Total accrued liabilities
Operating lease liabilities, current portion	$ 10,658	$ 12,947
Customer fund liabilities	35,249	31,727
Advance payments from customers	10,214	8,191
Rebate liabilities	42,363	44,644
Group purchasing organization fees	7,623	7,115
Taxes payable	11,327	3,771
Other accrued liabilities	29,006	24,772
Total accrued liabilities	146,440	133,167
Restricted cash	$ 17,489	$ 6,600	$ 640