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Balance Sheet Details - Other (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Accounts Receivable, Net
Accounts receivable	$ 25,085	$ 19,333
Allowance for doubtful accounts	(740)	(660)
Accounts receivable, net	24,345	18,673
Inventory
Finished goods	4,260	4,256
Work in process	4,404	3,197
Raw materials	4,137	5,829
Total inventory	12,801	13,282
Accrued Liabilities
Accrued bonuses	6,714	8,604
Accrued vacation benefits	2,696	2,446
Accrued legal expenses	4,604	2,466
Other accrued liabilities	15,588	10,448
Total accrued liabilities	$ 29,602	$ 23,964

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