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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statements of Operations:
Revenue	$ 107,745	$ 80,167
Cost of revenue	49,837	34,894
Gross profit	57,908	45,273
Operating expenses
Marketing and sales	16,572	12,987
Research and development	6,665	5,823
General and administrative	12,943	8,781
Total operating expenses	36,180	27,591
Income from operations	21,728	17,682
Other income, net	178	315
Income before income taxes	21,906	17,997
Provision for income taxes	3,855	5,797
Net income	$ 18,051	$ 12,200
Net income per share:
Basic (in dollars per share)	$ 0.67	$ 0.46
Diluted (in dollars per share)	$ 0.66	$ 0.46
Shares used to compute net income per share:
Basic (in shares)	26,879,388	26,466,731
Diluted (in shares)	27,197,099	26,599,200
Comprehensive Income (net of tax)
Comprehensive income	$ 20,444	$ 13,385

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