CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 68,026	$ 37,859
Marketable securities	91,339	87,872
Accounts receivable, less allowance of $510 and $680	66,188	64,912
Inventories, net	65,766	65,485
Income taxes receivable	0	2,389
Prepaid expenses and other current assets	17,533	4,113
Total current assets	308,852	262,630
Property, plant and equipment, net	15,849	11,858
Goodwill	22,495	22,495
Identifiable intangible assets, net	9,006	10,273
Other assets	31,342	31,443
Total assets	387,544	338,699
Current liabilities:
Accounts payable and accrued liabilities	25,381	21,494
Income tax payable	4,770	0
Deferred revenue	5,622	7,329
Other current liabilities	9,650	7,139
Total current liabilities	45,423	35,962
Other non-current liabilities	9,915	9,002
Total liabilities	55,338	44,964
Commitments and contingencies
Stockholders’ equity:
Common stock	32	31
Additional paid-in capital	384,631	381,189
Accumulated other comprehensive loss	(1,392)	(2,779)
Accumulated deficit	(51,065)	(84,706)
Total stockholders’ equity	332,206	293,735
Total liabilities and stockholders’ equity	$ 387,544	$ 338,699